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ChangeLog.txt
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Change Log
==========
2.7.0
-----
NEW: The SPARQL Query Builder API now has more extension points to enable developers to access the internals of the QueryBuilder when creating their own extensions to the fluent API. Thanks to @jaitao99 for the suggestion (#377)
NEW: Exposed the internal APIs used to add VALUES bindings into a graph pattern as public APIs supporting the use case where a developer wants to add a set of value bindings to an existing (parsed) SPARQL query. Thanks to @giacomociti for the suggestion (#379)
FIX: Fixed a bug with the SPARQL query parser not properly handing bracketed expressions in a maths expression. This fix also enhances the parser to be able to handle maths expressions with an ambiguous minus sign (-) without requiring the query to be changed to add whitespace. Thanks to @zzbxd for the report (#385)
FIX: Fixed the default DocumentLoader implementation for the JSON-LD parser to decode content according to the Content-Type header received in the response rather than relying on the .NET WebClient.DownloadString which doesn't do this behind the scenes. Thanks to @jakubklimek for the report (#376)
2.6.4
-----
ENHANCEMENT: Improve performance of the JSON-LD parser for large files by optimising keyword checks. Thanks to @CFlatWouldbeMinor for the report and suggestion.
FIX: Fixed the NamespaceMapper class to handle the case where two prefixes map to the same URI and one is then removed from the mapper. Previously this would result in the backwards URI-to-prefix mapping to the remaining prefix being lost, with this release, the URI-to-prefix mapping will now correctly return the remaining prefix. Thanks to @rdewaele for the report.
FIX: Fixed a bug with the ToString serialization of HAVING clauses in a SparqQuery instance. Thanks to @jiatao99 for the report.
2.6.3
-----
This package was released to NuGet by error due to changes in the CI build script.
2.6.2
-----
ENHANCEMENT: Improve performance of processing * paths in the Leviathan query engine. Thanks to @joc-proxem for the report.
2.6.1
-----
NEW: Added a public constructor for the `IriExpression` class to make it easier to add IRI constants when building a SPARQL query.
FIX: Significant performance enhancement for the TreeIndexedTripleCollection makes it faster to retract triples. Thanks to @blackwork for the PR.
FIX: Fix to the Leviathan query engine to fix the behaviour of grouped aggregates when the input context is empty. Thanks to @giacomociti for the bug report.
2.6
---
This release updates the JSON-LD implementation to conform to the final published version of the specification.
NEW: Updated the JSON-LD implementation to conform to the newly published JSON-LD 1.1 specifications (https://www.w3.org/TR/json-ld11/). The interfaces to the JSON-LD reader and writer and the JSON-LD processor are unchanged, but the internal implementation now conforms to the published W3C specification rather than the draft specification from jsonld.org. (#315)
FIX: Fix for double-encoding of URIs in RDF serializers. Thanks to @tpluscode for the report and fix. (#328)
2.5.1
-----
Updated the constructors for classes derived from NumericNode so that the string literal value that is generated uses the C# InvariantCulture. This ensures that the literal string generated conforms to the lexical value space for the corresponding XML schema datatype. Thanks to @uyha for the bug report. (#305)
2.5
---
NEW: The `IsReady` property of the `StardogConnector` now checks that the knowledgebase specified in the connector exists on the remote server. If the it is not found, `IsReady` will return `false`. Thanks to @joephayes for the suggestion and the PR. (#278)
FIX: SparqlParamaterizedString has been fixed to replace variables whose name starts with an underscore character. Thanks to @giacomociti for the bug report. (#230)
FIX: The SPARQL query parser has been fixed to better handle math expressions without brackets, such as 1*2*3 or 10/5/2. Thanks to @alaendle for the bug report. (#225)
FIX: The SHACL processor has been fixed to support the use of unnamed graphs as the shapes graph to validate with. Thanks to @langsamu for the bug report and fix. (#303)
2.4
---
The main focus of this update is to reinstate features that were disabled for the .NET Standard build when we were targetting .NET Standard 1.0 APIs. This eliminates dotNetRDF API differences between the .NET Framework and .NET Standard builds of the library.
NEW: Added a new property IGraph.AllNodes which returns an enumeration over all of the INode instances contained in the graph including those nodes used only in the predicate position of graph triples (#146)
FIX: Reinstated a large number of features from the .NET Framework version of dotNetRDF to the .NETStandard build. This includes:
* The option to use PLINQ evaluation for joins
* Parallel and asynchronous query evaluation in Leviathan
* SPARQLView invalidation
* Multi-threaded writing in store writers
FIX: Fix to the JSON-LD processor to better handle the use of URNs in places where an absolute IRI is allowed. Thanks to @jrdouceur for the report. (#282)
FIX: Fix to the JSON-LD processor to ensure that quads generated for RDF list nodes are inserted into the same graph as the list itself. Thanks to @jrdouceur for the report. (#297)
NEW: SHACL processor now provides default result messages for each of the constraints. Thanks to @o-tim for the report and @langsamu for the PR (#293)
2.3
---
The main updates of this release are the addition of a SHACL validator and SHACL API for dotNetRDF; the addition of a new Dynamic API for RDF graphs; and the removal of support for .NET Core 1.0 and the NETStandard 1.0 API.
BREAKING: Removed NETStandard 1.4 target framework (#273). Please migrate applications to target NETStandard 2.0.
NEW: SHACL Processor - a fully compliant SHACL Core and SHACL-SPARQL processor. Thanks to @langsamu for this amazing contribution! (#236)
NEW: Dynamic API for RDF graphs and nodes. See https://github.com/dotnetrdf/dotnetrdf/wiki/UserGuide-Dynamic-API for details. Thanks to @langsamu for the PR (#228)
FIX: Reinstated RDF parser test suites (#252)
FIX: Fix to ensure that the RdfXmlWriter properly escapes XML entity declarations. Thanks to @cygri for the report (#245)
FIX: Update JsonLdWriter to default to opening files with `FileMode.Create` for consistency with other writers. Thanks to @bergdahl for the report (#232)
FIX: Fix for an edge-case in the GraphMatcher brute-force matching algorithm. Thanks to @langsamu for the report (#235)
FIX: Fix to SPARQL query parser to allow a DOT token to appear after a FILTER. Thanks to @langsamu for the report (#237)
FIX: Update to allow BaseTripleComparer to be used as an IEqualityComparer paramter. Thanks to @MischaVreeburg for the PR (#241)
FIX: Performance enhancement for sorting nodes in the TurtleWriter. Thanks to @MischaVreeburg for the PR (#239)
FIX: Fix for incorrect IRI for the RDF langString datatype. Thanks to @langsamu for the report and PR (#223)
FIX: Fix for Leviathan SPARQL update on a named graph that does not exist in the store. Thanks to @langsamu for the report (#216)
FIX: Fix for an edge-case in the CompressingTurtleWriter that caused incorrect serialization of certain blank nodes. Thanks to @langsamu for the report (#279)
2.2
---
This release pulls together a number of minor features and enhancements provided by the user community.
NEW: Performance improvements for the ontology builder classes (OntologyClass and OntologyProperty). Thanks to @DFinnh for the PR (#221)
NEW: The TriG parser now supports the syntax of the most recent TriG recommendation. This is now the default syntax supported by the TriG parser. Thanks to @langsamu for the PR (#205, #208)
NEW: SPARQL QueryBuilder now supports SPARQL VALUES clauses. Thanks to @tpluscode for the PR (#214)
NEW: The Get...Node methods of the Graph class now include nodes used as predicates as well as those used as subjects and objects in the graph. (#209)
FIX: Fix for the RDF/XML parser to better handle XML namespaces. Thanks to @glebkozh for the report. (#203)
NEW: StardogConnector now supports opening a transaction with reasoning enabled. Thanks to @DarthStem for the PR (#226)
2.1
---
This release fixes a number of bugs found in the 2.0.1 release and adds some new features provided by the user community
- NEW: New features for the QueryBuilder API. Added support for generating sub-queries using the QueryBuilder and added support for supplying custom TripleBuilders in addition to the fluent style API. Thanks to @faubulous for the PR. (#144)
- NEW: Added a new (read-only) SKOS API making it easier to access data held in RDF graphs that use the SKOS vocabulary. Thanks to @langsamu for the PR. (#174)
- NEW: Added a GraphML store writer. This writer generates a GraphML file that describes the topology of the graphs in a store in a format suitable for loading into various graph processing/visualisation tools. Thanks to @langsamu for the PR (#184)
- NEW: The GraphViz writer now supports optionally outputting literals as separate nodes for each triple rather than as a single node for a given literal value. Thanks to @langsamu for the PR (#196).
- FIX: Fix for over-enthusiastic DateTime coercion in the JSON-LD parser. Thanks to @langsamu for the report and fix. (#164)
- FIX: Fix for the JSON-LD parser incorrectly losing the content of the local context when processing a remote context. Thanks to @briancr-ms for the bug report. (#183)
- FIX: Fix for the TreeIndexedTripleCollection to explicitly remove empty triple lists from the indices when triples are removed from the colleciton. Thanks to @langsamu for the report. This fix also fixes an issue with the HtmlWriter generating empty table rows for triples that have been removed from the graph (#188, #189)
2.0.1
-----
This is a bug-fix release for the 2.0.0 release.
- FIX: Updated VDS.Common dependency to latest release version. Thanks to @langsamu for the report.
- FIX: Ensure all assemblies receive the correct version number as AssemlyVersion and FileVersion. Thanks to @langsamu for the report.
- FIX: RDF/XML parser now strips off the fragment part of the XML base URI when resolving same document references. Thanks to @langsamu for the report and suggested fix.
- FIX: RDF/XML parser now better handles documents where the RDF XML namespace URI is not mapped to the `rdf` prefix. Thanks to @langsamu fo the report.
2.0.0
-----
This release marks a major restructuring of the project.
Change Summary:
- Tools and samples are now moved to their own independent GitHub repositories (https://github.com/dotnetrdf/dotNetRDF.Toolkit and https://github.com/dotnetrdf/dotNetRDF.Samples).
- Support for .NET 3.5 and .NET 3.5 client profile has been removed.
- Updated the solution and project files to .NET Core SDK 2.0
- Added support for .NET Core 1.1 and 2.0
- The build process has been simplified and no longer relies on NAnt - a build can be done from the command line as `dotnet restore` followed by `dotnet build`
- Added support for JSON-LD. The implementation is tracking the in-development JSON-LD 1.1 specification.
- Added support for enabling/disabling reasoning on SPARQL queries over the Stardog connector. Thanks to @charbull for the PR.
- The SparqlRemoteEndpoint class now always honours an explicitly set HttpMode value. By default, the mode is set to AUTO which continues to implement pre-2.0 behaviour,
using GET unless the query string exceeds the internal query string length limit of 2048 characters or contains non-ASCII characters. From 2.0, if the user explicitly
sets HttpMode to GET or to POST, that method will be used regardless of query parameter length or content. Thanks to @reeset for the report. (#128)
- Fixed an error in the configuration of the Newtonsoft JSON parser that caused the RdfJSONParser to fail when the JSON file contained literal values formatted as ISO 8601 date/time strings. (#130)
- Added a new IRdfWriter implementation that wraps an IStoreWriter implementation, allowing a single IGraph instance to be written using an IStoreWriter (#126)
- Refactored HTTP authentication in the connectors so that it is now implemented in BaseHttpConnector. Thanks to @tpluscode for the PR.
- Performance improvements for looking up nodes in indexed graph collections. (#153). Thanks to @tpluscode for the PR.
- Added a new IRdfHandler implementation. VDS.RDF.Parsing.Handlers.StripStringHandler is a handler that wraps another handler and removes the xsd:string datatype from literal objects. (#157). Thanks to @langsamu for the PR.
1.0.13
------
Added
- .NET Core build - targets the netstandard1.4 framework (see https://github.com/dotnet/corefx/blob/master/Documentation/architecture/net-platform-standard.md for compatibility details).
Changed
- Build Changes
- Changed API documentation build to use [Sandcastle Help File Builder](https://github.com/EWSoftware/SHFB) rather than the older NDoc
- Bug Fixes
- Added support for aggregates to query builder (#81, #80)
- Fixed Newtonsoft.Json reference (#66)
1.0.12
------
Changed
- Bug Fixes
- Fix namespace handling error in the RDF/XML parser (#59)
1.0.11
------
NOTE: From this release, bug tracking has moved to https://github.com/dotnetrdf/dotnetrdf/issues
so bug ID references are to this new tracker (in the form #XXX)
Changed
- Bug Fixes
- Fix for LazyBGP evaluation where triple patterns do not extend the result set with more bindings (#57)
- Fix for incorrect return on evaluation of a (NOT) EXISTS filter with no variables (#58)
1.0.10
------
Changed
- Bug Fixes
- Fix inconsistent use of XML entities for compression in RdfXmlWriter (CORE-453)
- Disable HTTP Keep Alive by default as it can cause errors under some circumstances (CORE-454)
- Fix bug with ToString() form of SparqlQuery not being round trippable in some cases (CORE-458)
- Build
- Ensure all NuGet packages and Release libraries are built in Release mode (CORE-459)
- Dependencies
- Upgrade OpenLink.Data.Virtuoso to 7.20.3214.1 (VIRT-359)
- Note that this removes support for Virtuoso on .Net Client Profile
- Upgrade VDS.Common to 1.6.4 (CORE-459)
- Upgrade Newtonsoft.Json to 8.0.3 (CORE-460)
1.0.9
-----
Changed
- Bug Fixes
- Performance fixes for query evaluation over virtual graphs (CORE-449, CORE-450, CORE-451, CORE-452)
- BaseEndpoint now permits more access to the HttpWebRequest prior to issuing it to allow for extra customisation (CORE-448)
- AllegroGraph compatibility issue with incorrect MIME type for saving data (CORE-447)
- SPARQL Query Parser was overly strict with some aggregate containing queries where the GROUP BY was implicit (CORE-446)
- Fixes for Stardog 3.x support (CORE-443)
- Improvements to multi-threaded performance when using URI Interning
- Dependencies
- Upgrade VDS.Common to 1.6.0
1.0.8
-----
Changed
- Bug Fixes
- Some SPARQL parsers did not handle bad URIs gracefully i.e. did not provide informative errors (CORE-432)
- SPARQL CSV parser reject variable names in header row if CSV quoted values are used (CORE-433)
- Accessing remote SPARQL endpoints could fail to include default & named graph parameters if POSTing the queries (CORE-434)
- Fix possible exception when evaluating a query with a ORDER BY and LIMIT over a cross product (CORE-437)
- Lazy query evaluation can cause an apparent infinite loop (i.e. extremely slow query evaluation) in some cases (CORE-439)
- Fix typo in MIME type definitions for NTriples
- Fix bug where HAVING clause that used aggregates could fail to evaluate correctly if project expressions were also used (CORE-440)
- Fix bug in evaluation of the zero length portion of * paths causing incorrect results (CORE-441)
- Build
- Upgrade PCL build to Profile 328
- Dependencies
- Upgrade VDS.Common to 1.5.0
- Upgrade Json.Net to 6.0.8
1.0.7
-----
Changed
- Bug Fixes
- Missing ToString() on UUID() and StrUUID() functions (CORE-427)
- Fix bug with parsing BIND inside complex nested graph patterns (CORE-428)
- Fix bug with RDF/XML output under MonoTouch (CORE-431)
- Build
- Ensure AssemblyVersion is synchronised properly with NuGet package versions (CORE-426)
- Remove MSBuild integrated NuGet package restore
- Dependencies
- Upgrade VDS.Common to 1.4.0
- Upgrade Json.Net to 6.0.6
- Upgrade HtmlAgilityPack to 1.4.9
1.0.6
-----
Changed
- Bug Fixes
- Fix bug in overly strict SPARQL Results JSON parsing (CORE-419)
- Fix bug with incorrect sub-query evaluation (CORE-420)
- Fix bug where NQuadsWriter may omit graph names when the data was inserted via SPARQL Updates (CORE-421)
- Fix bug parsing SPARQL Results JSON where data is in unexpected order (CORE-423)
- Fix possible NPE when running updates with a custom query processor
- Fix for Stardog 2.2 reasoning support
1.0.5
-----
Changed
- Bug Fixes
- Fix a bug with Left Join producing incorrect results due to join linearization optimizations in some cases (CORE-406)
- Fix a bug in substituting parameter values containing $ signs into SparqlParameterizedString instances (CORE-408)
- Fix a corner case in evaluating CONSTRUCT queries with empty WHERE clause and concrete triples in template (CORE-407)
- Fix overly strict SPARQL Results XML parsing (CORE-410)
- Fix incorrect usage of Single.NaN and Double.NaN constants with equality operator (CORE-412)
- Include location information in Illegal space in URIs error from NTriples tokeniser
- Fix a bug with scheduling of sub-queries (CORE-416)
- Fix a bug with GRAPH clauses being executed multiple times unecessarily (CORE-416)
- Dependencies
- Upgrade VDS.Common to 1.3.0 (CORE-405)
- Upgrade Json.Net to 6.0.3 (CORE-405)
- Build
- Upgrade PCL build to Profile 136 (CORE-405)
- Parsing
- Improve error message for excess triple pattern tokens (CORE-411)
- Query
- Add FixedVariables and FloatingVariables properties to ISparqlAlgebra and related classes (CORE-406)
- Improve logic for when Left Joins are linearized (CORE-406)
- ExplainQueryProcessor improvements:
- GRAPH clause explanations
- Indentation of output for easier reading
Removed
- Builds
- Remove SL4 and WP7 builds (CORE-405)
1.0.4
-----
Added
- Parsing
- Support for updated NTriples syntax per the RDF 1.1 specification (CORE-355)
- Support for updated NQuads syntax per the RDF 1.1 specification (CORE-356)
- Writing
- Support for updated NTriples syntax per the RDF 1.1 specification (CORE-355)
- Support for updated NQuads syntax per the RDF 1.1 specification (CORE-356)
Changed
- Bug Fixes
- Fix a bug where some graph patterns may get translated into algebra incorrectly (CORE-398)
- Fix a bug with overly greedly tokenization when parsing prefix declarations in Turtle, N3 and SPARQL
- Fix a bug with language specifiers not being consistently normalized to lower case internally
leading to unexpected behaviour trying to query for triples by language tag (CORE-401)
- Fix a bug in re-serializing queries containing UNION clauses (CORE-402)
- Fix a bug in parsing collections from TriG syntax (CORE-403)
- Core API
- Content negotiation for NTriples and NQuads updated to favour officialy specified MIME types (CORE-355,CORE-356)
- Storage
- Add Timeout property to all HTTP based storage providers which is used for all HTTP requests (CORE-400)
- Fix handling CONSTRUCT/DESCRIBE results from more recent Virtuoso versions (VIRT-397)
- Fix handling of inserting/deleting blank nodes with more recent Virtuoso versions (VIRT-399)
- Formatting
- NTriplesFormatter and NQuadsFormatter now take a syntax argument (CORE-355,CORE-356)
- NTriples11Formatter and NQuadsFormatter11 added as convinient shortcuts to providing explicit syntax (CORE-355,CORE-356)
Removed
- Removed obsolete unusable DydraConnector
1.0.3
-----
Changed
- Bug Fixes
- Fix a bug in how Sesame connections load the default graph
- Fix a bug causing incorrect results in some cases of { } OPTIONAL { } when the LHS and RHS are disjoint i.e. no
common variables (CORE-386)
- DELETE WHERE { } shorthand syntax was permitted to have a preceding WITH clause which was invalid SPARQL syntax (CORE-389)
- URILoader.Load() can sometimes swallow exceptions (CORE-391)
- Timeout (and other request options) was not honoured for asynchronous queries and updates using SparqlRemoteEndpoint and SparqlRemoteUpdateEndpoint (CORE-393)
- Fix a bug in handling Fragment Identifier in Graph URIs for SPARQL Graph Store protocol based stores like Fuseki (CORE-394)
- Fix a bug in translating and evaluating complex property paths (CORE-395)
- Dependencies
- Bumped Json.Net to 5.0.8
- Documentation
- Minor tweak to Timeout properties to ensure all explicitly state that the unit is milliseconds (CORE-387)
- Query
- SparqlResultSet can now be created from an IEnumerable<SparqlResult> instances (CORE-383)
- Storage
- Add native SPARQL Update support to StardogV2Connector (CORE-376)
1.0.2
-----
Added
Changed
- Bug Fixes
- Possible OOM when stream parsing large RDF/XML files (CORE-378)
- Fix a bug with transactions being left open in some cases when using VirtuosoManager (VIRT-382)
- NuGet
- Fixed packaging to ensure the Portable Class Library builds are included
Removed
- Marked as obsolete unusable the obsoleted ICharFormatter.FormatChar() method
1.0.1
-----
Added
- Portable Class Library builds are now included (CORE-303)
- Note that synchronous APIs for some functionality are not supported in the PCL builds (CORE-371)
- Formatting API
- Add new more efficient FormatChar() overload to ICharFormatter (CORE-357)
- Query
- First version of new Fluent Query builder API (CORE-260)
- Global Options
- Add new DefaultCulture and DefaultComparisonOptions used for lexical ordering of literal values in the cases
where more natural ordering (e.g. numeric) does not apply (CORE-367)
Changed
- Bug Fixes
- Fix a bug where SPARQL parsing could incorrectly lose type information for some literals used in expressions
- Fix a Stack Overflow that could occur in ThreadSafeGraph (CORE-363)
- Property Path * operator could produce incorrect results (CORE-349)
- Correct an error message re: extension point in Full Text Indexing (FTXT-366)
- Some full text queries could cause BIND clauses to result in unbound values (FTXT-364)
- Fixes to handling of some Date Time comparisons in SPARQL (CORE-365)
- Fixes to asynchronous error propagation for some async APIs (CORE-370)
- Fixes to parsing of EXISTS/NOT EXISTS within the WHERE clause of a SPARQL Update (CORE-373)
- Fixed an encoding bug when communicating with Sesame servers (CORE-374)
- Fixed a bug with handling relative URIs as graph names with Virtuoso (VIRT-375)
- Dependencies
- Upgraded Json.Net to 5.0.6
- Query
- IValuedNode contract changed to have both AsDateTime() and AsDateTimeOffset() methods (CORE-365)
- Storage
- Add partial support for connections to Stardog 2.0 servers
- Native SPARQL update support for Stardog 2.0 is not yet available
- Configuration API
- ConfiguationLoader had IConfigurationLoader interface extracted (CORE-362)
- Writing
- Significantly improve performance of writing non-ASCII characters to NTriples (CORE-357)
Removed
- Marked as obsolete usable the old ICharFormatter.FormatChar() method (CORE-357)
- Marked DydraConnector obsolete unusable per deprecation policy
1.0.0.2533
----------
Changed
- Build
- Relevant project files now specify signing keys directly so VS builds will be signed in the same way that NAnt builds were previously, Silverlight builds
are still not signed
1.0.0.2473
----------
Added
- Parsing
- New ITokenisingParser interface which exposes a TokenQueueMode property (CORE-332)
- Global Options
- New Options.DefaultTokenQueueMode controls default queue mode for tokeniser based parsers (CORE-332)
- New Options.ValidateIris controls whether certain parsers perform strict IRI validation, currently only Turtle W3C syntax supports this (CORE-314)
- Configuration
- ConfigurationLoader may now be used in a convenience instance mode (CORE-337)
- SparqlRemoteUpdateEndpoint now implements IConfigurationSerializable properly (CORE-346)
- New dnr:queryEndpoint, dnr:queryEndpointUri, dnr:updateEndpoint and dnr:updateEndpointUri properties for use in place of their generic equivalents (CORE-346)
- Query
- New optimization improves performance for some queries using ORDER BY + DISTINCT combinations (CORE-353)
- Storage
- New ReadWriteSparqlConnector for connecting to arbitrary triple stores that expose both a Query and Update endpoint (CORE-346)
Changed
- Bug Fixes
- Fix for one form of AllegroGraphConnector constructor confusing Store and Catalog IDs
- StoreHandler did not propogate namespaces to all graphs (CORE-334)
- SPARQL expression parsing could occassionally reject some numeric literals incorrectly (CORE-332)
- GROUP BY could interact incorrectly with some operators such as VALUES and GRAPH resulting in incorrect results (CORE-336)
- GRAPH ?g { } was interpreted incorrectly (CORE-336)
- Fixed a bug where asynchronous UpdateGraph() on Sesame connections would invoke the callback too early
- Fixed a bug in GROUP_CONCAT where certain values would not be correctly concatenated together (CORE-340)
- Fixed a corner case bug where the Turtle parser could accept some invalid input and generate incorrect URIs for it (CORE-341)
- Fixed a bug where certain triple patterns could trigger a bug in the scan logic and explode the solution space (CORE-343)
- Fixed a bug where Graph equality could explode memory usage and be unable to determine equality on some blank node heavy equivalent graphs (CORE-345)
- Fixed a bug with numeric literals not being parsed using the invariant culture (CORE-344)
- Fixed a bug with the Ontology API not returning OWL datatype properties correctly (CORE-339)
- Fixed a bug where DESC() applied to a sort condition in SPARQL could propogate the DESC() to the subsequent sort condition (CORE-350)
- Fixed a bug where not all sort conditions in SPARQL were applied for rows where any column evaluated to null (CORE-350)
- Fixed a bug where EXISTS/NOT EXISTS used a child expression in a larger expression could cause incorrect results
- Fixed various corner case bugs in Turtle parsing highlighted by updating to support latest W3C recommendation (CORE-314)
- Fixed a bug with use of xml: as a prefix for element names in RDF/XML (CORE-358)
- Dependencies
- Upgraded VDS.Common to 1.2.0 which resolves an issue that users may encounter under the VS debugger (CORE-317, CORE-292)
- Upgraded Json.Net to 5.0.4
- Documentation
- Documentation was moved to BitBucket wiki at http://bitbucket.org/dotnetrdf/dotnetrdf/wiki (DOCS-306)
- Core API
- TreeIndexedTripleCollection now supports completely configurable indices (CORE-309)
- Graph equality should now be more performant (CORE-345)
- HTTP Debugging is no longer debug build specific (CORE-347)
- Various improvements to localalization support particularly around numeric value handling
- Parsing
- Updated support for Turtle to W3C Candidate Recommendation (19th Feb 2013 version) (CORE-314)
- Escape handling is now much stricter and will throw errors on invalid escape sequences which previously would have been silently allowed (CORE-314)
- Optional IRI validation for Turtle W3C which is disabled by default, use Options.ValidateIris to enable (CORE-314)
- Query
- Wherever possible the order of variables in the SELECT clause will now be respected in SparqlResultSet objects (CORE-342)
- Storage
- SesameNativeTemplate is now a public class
- AllegroGraphConnector now implements IUpdateableStorage and IAsyncUpdateableStorage (CORE-308)
- Fix target framework profile for dotNetRDF.Data.Virtuoso.ClientProfile
- Writing
- Improved how characters are escaped (counterpart to stricter escape handling) which provides better round tripping of data (CORE-314)
Removed
- Removed defunct TalisException
- Removed defunct internal class InternalXmlWriter
- Marked DydraConnector with an obsolete usable due to continuing inconsistency and transient failures from the Dydra API
- Removed defunct Project class
- Marked IInMemoryQueryableStore.ExecuteQuery() methods as deprecated in favour of using ISparqlQueryProcessor
0.9.0 RC4
---------
Added
- Ontology API
- Added Direct/Indirect SubClasses and SuperClasses property on OntologyClass (CORE-295)
- Added Direct/Indirect SubProperties and SuperProperties property on OntologyProperty (CORE-295)
- Added Siblings property on OntologyClass and OntologyProperty (CORE-296)
- Added IsTopClass and IsBottomClass property on OntologyClass (CORE-293)
- Added IsTopProperty and IsBottomProperty on OntologyProperty (CORE-293)
- Added Owl/Rdf/All Classes and Properties properties on OntologyGraph (CORE-293)
- Added AsClass() and AsProperty() methods on OntologyResource (CORE-293)
Changed
- Bug Fixes
- Fix a bug to allow OrderByVariable to take variable name with/without leading ?/$
- Fix a bug in SparqlJsonParser relating to some valid data being rejected due to Json.Net perculiarities (CORE-290)
- Fix a bug in the streaming mode of the RDF/XML parser not respecting external Base URI (CORE-216)
- Fix a corner case bug in interaction between GRAPH clause and inner patterns that match but have no variables (CORE-294)
- Fix a corner base base in interaction between GRAPH clauses and property paths (CORE-294)
- Fix a bug in INSERT/DELETE commands when a GRAPH clause with an unbound variable is used (CORE-300)
- Fix a bug with the XPath Replace function (CORE-299)
- Fix a bug with applying aggregates over empty intermediate results giving incorrect results (CORE-304)
- Add an opt-in workaround for HTTP Basic Authentication against badly behaved server (CORE-301)
- Fix a bug with loss of precision when converting DateTime to xsd:dateTime literals (CORE-305)
- Dependencies
- Externalized the VDS.Web.Server library as a dependency version 1.0.0
- Updated VDS.Common to 1.1.2
- Build
- Improved our test architecture significantly (CORE-216)
- NuGet packages now include PDBs to aid consumers in debugging issues with dotNetRDF (CORE-292)
- Storage, Query and Update
- Always enable PreAuthenticate for HTTP requests where possible to reduce HTTP requests (CORE-302)
Removed
- Removed the obsolete JosekiConnector as obsolete unusable
- Removed some obsolete property and class constants in ConfigurationLoader as obsolete unusable
- Removed the obsolete Graph() method of ITripleStore as obsolete unusable (superceded by indexer access)
- Removed the obsolete IndexingHelper static class as obsolete unusable
- Removed the obsolete ConfigurationLoader.AutoDetectX() overloads as obsolete unusable
- Removed the obsolete Tools.StreamCopy() method as obsolete unusable
- Removed the obsolete FastRdfXmlWriter as obsolete unusable
0.8.2 RC3
---------
Changed
- Bug Fixes
- Fixed a subtle bug in GraphCollection caused by the previous fix in 0.8.1 RC2
- Fixed a bug with ToLiteral() not using the invariant culture
- Dependencies
- Updated VDS.Common to 1.1.0
- Corrected NuGet dependency on Json.Net to 4.5.11 to match our builds
0.8.1 RC2
---------
Changed
- Bug Fixes
- Fixed a critical bug in GraphCollection caused by a change in a dependency that wasn't caught by our existing
regression tests
0.8.0 RC1
---------
Added
Changed
- Bug Fixes
- Fixed an internal API inconsistency (CORE-285)
- Fixed a bug in the BNODE() function
- Fixed a bug in Extend that could occur when many Extends were nested together (CORE-287)
- Fixed an intermittent race condition in the implementation of parallel Left Join
- Fixed a bug in the evaluation of some complex GROUP BY statements
- Fixed a bug in the string representation of CountDistinctAggregate (CORE-286)
- Fixed a bug related to losing FILTERS when building queries using the internal APIs
- Fixed a bug related to ToString() form of some API built queries (CORE-286)
- Fixed a bug related to graph scoping of full text search
- Fixes various bugs related to SPARQL 1.1 Protocol and Service Description compliance (CORE-289)
- Dependencies
- Updated Json.Net dependency to 4.5r11
- Updated Query.FullText Library to use Lucene.Net 3.0.3
- Externalized the VDS.Common namespace as a dependency version 1.0.1
- All dependencies are now maintained using NuGet
- Build
- Query.FullText Library is now always strong named
- Query.FullText NuGet package now references Lucene.Net as a dependency instead of including it in the package
- Data.Virtuoso NuGet package now references OpenLink.Data.Virtuoso as a dependency instead of including it in the package
- All alternative builds are now part of the solution rather than being generated only by the NAnt builds
- Parsing/Writing
- Improved how parsers and writers are selected by file extension (CORE-282)
- Improved content negotiation logic to properly support quality factors and type ranges (CORE-282)
- Avoid using blocking IO when parsing from file/memory streams (CORE-282)
- Query
- Improved how Distinct() algebra behaves with respect to trimming temporary variables to better support complex property paths
- Improved how GROUP BY, aggregates and Project Expressions are implemented internally (CORE-284)
- Improved parallel implementation of Left Join
Removed
- Marks the obsolete JosekiConnector as obsolete unusable
- Removed the obsolete TalisPlatformConnector
- Removed the obsolete IndexedTripleCollection and it's descendants
- Removed the obsolete AdvancedTripleCollections
- Marks some obsolete property and class constants in ConfigurationLoader as obsolete unusable
- Removes the previously obsoleted property and class constants in ConfigurationLoader
- Marks the obsolete HashTable classes as obsolete unusable
- Marks the obsolete Graph() method of ITripleStore as obsolete unusable (superceded by indexer access)
- Marks the obsolete IndexingHelper static class as obsolete unusable
- Marks the obsolete ConfigurationLoader.AutoDetectX() overloads as obsolete unusable
- Marks the obsolete Tools.CopyStream() method as obsolete unusable
- Marks the obsolete FastRdfXmlWriter as obsolete unusable
0.7.2 Beta
----------
Added
- Configuration API
- More auto-configuration methods (CORE-270)
- Helper methods for loading configuration graphs (CORE-270)
- Supports new ability to have one configuration graph import another URI/file
- More overloads for GetConfigurationX() methods to select values based on a selection of possible properties (CORE-270)
- Support for specifying custom Triple and Graph Collections (CORE-270)
- Support for loading IStorageServer instances (CORE-270)
- Support for loading SPARQL operators and property function factories (CORE-270)
- Support for automatically configuring static properties e.g. Options.UsePLinqEvaluation (CORE-270)
- Query
- Added IsMinusCompatibleWith() method to ISet interface (CORE-238)
- Support for extended SPARQL Operators e.g. using + for Date Time arithmetic (CORE-264)
- Support for SPARQL property functions (CORE-268)
- Refactored Query.FullText to be a true property function (CORE-268)
Changed
- Bug Fixes
- Some logic fixes to AllegroGraphConnector and AllegroGraphServer (CORE-263)
- Bug fix to TreeIndexedTripleCollection (CORE-265)
- Bug fix to corner case MINUS logic in SPARQL 1.1 (CORE-238)
- Bug fix to corner case GROUP BY and aggregate interaction logic (CORE-238)
- Bug fix to improve handling of & when outputting XML - Kal Ahmed
- Bug fix for a logic flaw in GraphCollection exposed when deriving from GraphCollection caused by the refactor to use of MultiDictionary (CORE-274)
- Bug fix for a parsing error when property paths are nested in Blank Node predicate object lists
- Bug fix for proper parser detection when selecting based on a .abc.gz filename
- Bug fix for error in Lazy evaluation of some queries (CORE-238)
- Bug fix for subtle logic errors in SPARQL dataset resolution in some rare cases (COR-238)
- Bug fix for some prefix validation bugs in SPARQL 1.1 (CORE-238)
- Bug fix for doing unecessary extra work in a SPARQL DISTINCT operation and not discarding temporary variables (CORE-238)
- Bug fix for pathological case of Graph isomporphism not being handled correctly in GraphMatcher
- Bug fix for use of Uri.EscapeDataString() on long strings (CORE-278)
- Bug fix to a corner case where a ScapegoatTree could lose data in a rebalance (CORE-279)
- Bug fix to QueryableGraph not being properly aware of change in default graph behaviour (CORE-238)
- Bug fix for RdfXmlParser incorrectly resolving some bad property QNames (CORE-280)
- Dependencies
- Bumped JSON.Net version to 4.5r9
- Bumped HtmlAgilityPack version to 1.4.6
- Core API
- Made TreeIndexedTripleCollection the default triple collection implementation (CORE-265)
- Parsing
- Turtle parser now allows SPARQL style BASE and PREFIX when using W3C standard syntax (CORE-261)
- Query
- Improves SPARQL 1.1 support to near 100% compliance (CORE-238)
- Storage
- Moved IStorageServer implementations into separate classes (AllegroGraphServer, SesameServer and StardogServer) in own namespace (CORE-263)
- Added ParentServer and AsyncParentServer properties to IStorageProvider and IAsyncStorageProvider (CORE-263)
- Talis is no longer supported since the Talis Platform is in the process of winding down for public usage
Removed
- Marked the TalisPlatformConnector as obsolete unusable
- Removed the obsolete Data.Sql library from the distribution
- Marked the now superseded IndexedTripleCollection and it's descendants as obsolete unusable
- Removed the obsolete ThreadSafeIndexedTripleCollection
- Removed IStoreParams
- Removed the old overloads of IStoreReader and IStoreWriter
- Removed the obsolete IGenericIOManager interfaces
- Removes obsolete property and class constants in ConfigurationLoader
0.7.1 Beta
----------
Added
- Core API
- New Indexing data structures (CORE-247, CORE-52)
- New decorator classes to make it simpler to wrap extra functionality around existing implementations: (CORE-255)
- WrapperGraph
- WrapperGraphCollection
- WrapperTripleCollection
- WrapperTripleStore
Changed
- Bug Fixes
- Fixed a bug with parsers being too restrictive on permitted language specifier formats - thanks to Csaba Gonczi (CORE-253)
- Fixed a subtle bug around percent encoded characters in URIs - thanks to Rob Styles (CORE-258)
- Fixed a bug with GraphDiff and null reference handling (CORE-259)
- Core API
- IGraph changes:
- Changes definition of Assert() and Retract() to return booleans (CORE-254)
- Removes unecessary overloads of Assert() and Retract() (CORE-254)
- ITripleStore changes:
- Changes definition of Add() and Remove() to return booleans (CORE-254)
- Adds indexer for accessing graphs and obsoletes the Graph() method in favour of this
- Triple Collection changes:
- BaseTripleCollection now defines Add() and Delete() as returning booleans (CORE-254)
- Refactored internals of TripleCollection to use our new MultiDictionary data structure (CORE-247)
- ThreadSafeTripleCollection is now a decorator that can be applied to any BaseTripleCollection instance, also made it available on Silverlight (CORE-255)
- Graph Collection changes:
- Refactored internals of GraphCollection to use our new MultiDictionary data structure (CORE-247)
- ThreadSafeGraphCollection is now a decorator that can be applied to any BaseGraphCollection instance, also made it available on Silverlight (CORE-255)
- DiskDemandGraphCollection and WebDemandGraphCollection are now both decorators and so can be combined on top of each other as desired (CORE-255)
- Query
- ISparqlDataset now defines AddGraph() and RemoveGraph() as returning booleans (CORE-254)
- Storage API
- Refactored IStorageServer API (CORE-249)
- Added support for creating stores with Sesame - thanks to Jeen Broekstra (CORE-249)
- Standardized error handling across Storage Providers as far as possible - thanks to Ron Michael Zettlemoyer (CORE-262)
- Stardog
- Avoid any transaction if calling UpdateGraph() without any updates - thanks to Ron Michael Zettlemoyer
Removed
- Marked the TalisPlatformConnector as obsolete but usable
- Marked the contents of the Data.Sql library as obsolete unusable
- Removed the obsolete BackgroundPersistedGraph class
- Marked the now superseded IndexedTripleCollection and it's descendants as obsolete usable
- Marked the obsoleted ThreadSafeIndexedTripleCollection as obsolete unusable
- Marked IStoreParams as obsolete unsuable
- Marked the old overloads of IStoreReader and IStoreWriter as obsolete unusable
0.7.0 Beta
----------
Added
- Query
- Added an implicit join optimiser
- Added a filtered product optimiser (CORE-224)
- Added support for UUID and STRUUID functions (CORE-222)
- Added support for VALUES syntax (CORE-222)
Changed
- Bug Fixes
- Fix for a bug with FILTER and BIND in the WHERE clause of INSERT/DELETE causing incorrect behaviour due to an over optimization issue (CORE-225)
- Fix for a bug with ASK queries and SparqlRemoteEndpoint.QueryWithResultSet() (CORE-229)
- Fix for a bug with Stardog connectivity related to defunct connection string parameter (CORE-230)
- Fix for a bug with multi-threaded access to MimeTypesHelper failing if it hadn't been previously accessed (CORE-228)
- Fix for a bug with multi-threaded access to our Trie implementation (CORE-228)
- Fix for a bug with nested aggregates evaluating when they should error i.e. inner aggregate gives unbound (CORE-232)
- Fix for bugs readrding insertion and deletion of Blank Node containing triples via the UpdateGraph() method when using Virtuoso (
- Fix for calling CreateUriNode() with a relative URI on a Graph not automatically resolving against Graph Base URI
- Parsing
- Refactored IStoreReader API to be consistent with IRdfReader and ISparqlResultsReader (CORE-212)
- Query
- Default behaviour is now not to have a union default graph (CORE-211)
- BINDINGS syntax now disabled in favour of the new VALUES syntax from latest editors draft (CORE-222)
- Revised STRAFTER and STRBEFORE implementation to latest editors draft (CORE-222)
- Turned on PLinq Evaluation by default, following operations are parallelised currently:
- Join
- LeftJoin
- Product
- Filter
- Extend
- Storage
- Major refactor and reorganisation of interfaces within Storage namespace to have more consistent naming (CORE-215)
- Supports a standard async access API over almost all existing storage providers (CORE-68)
- Adds a new IStorageServer interface for providers like Sesame and AllegroGraph which allow multiple stores to be managed (CORE-215)
- Serialization
- Refactored IStoreWriter API to be consistent with IRdfWriter and ISparqlResultsWriter (CORE-212)
- Update
- Refactored code around ISparqlHttpProtocolProcessor to make it easier to expose this feature on non-ASP.Net web servers (CORE-183)
Removed
- Obsolete ISelector API removed
- Removed any internal use of embedded HashLib code as it is no longer necessary
- Removed the obsolete BaseNodeCollection API
- Marked the contents of the Data.Sql library as obsolete but usable
0.6.2 Beta
----------
Added
- Query
- Added an implicit join optimiser
Changed
- Bug Fixes
- Fix for an issue with bif:contains and other special constructs in SPARQL queries to Virtuoso
- Fix for a bug with CREATE GRAPH and GenericUpdateProcessor behaviour for stores that don't support empty graphs
- Fix for some regressions in SPARQL 1.1 support introduced by internal data structure changes in the 0.6.1 release
- Fix for corner case logic flaw in GRAPH clause evaluation
- Fix for proper configurable timeouts for Virtuoso
- Fix for some Virtuoso extensions causing queries to be rejected
- Fix for incorrect parser selection when talking to some Sesame based servers
- Parsing
- Explicit support for direct parsing of GZipped inputs (e.g. example.ttl.gz)
- More intelligent format detection on loading into TripleStore instances
- Ontology API
- Added IsDomainOf and IsRangeOf properties to OntologyClass
- Query
- Added TryGetValue() and TryGetBoundValue() methods to SparqlResult class
- Storage
- Storage API outline now available on Silverlight/Windows Phone 7 though many implementations are not available on those platforms
Removed
- All Talis specific classes except TalisPlatformConnector
- Obsolete NativeTripleStore and StoreGraph
- Obsolete HandlerConstants
- Marked all legacy FolderStore classes as deprecated but usable
- Marked old GenericReader/GenericWriter classes as deprecated unusable
0.6.1 Beta
----------
Added
Changed
- Bug Fixes
- Fixed an inadvertent StackOverFlowException in the StardogConnector constructor
- Configuration
- Updated vocabularies to reflect new properties in 0.6.x releases and remove defunct properties
- Query
- Experimental PLINQ optimisation of query evaluation for .Net 4.0 builds (disabled by default)
Removed
0.6.0 Beta
----------
Added
- Core
- URIs are now interned to reduce memory usage and speed up equality comparisons
- Improved configurability of HashTable so perfomance can be tailored to usage
- Parsing
- Support for parsing W3C standard Turtle (allows for more QNames, case insensitive boolean literals and single quoted literals)
- Registered text/boolean parser for SPARQL Results
- Storage
- All HTTP based storage now supports HTTP proxying
Changed
- Bug Fixes
- Fixed a bug with long URIs and SparqlRemoteUpdateEndpoint
- Critical bug where connecting to an AllegroGraph 4.x repository cleared existing data
- Fixed a bug whereby Blank Node IDs in NTriples output could be invalid
- Fixed a bug where QNames in RDF/XML output weren't fully validated against the latest revisions of the XML specs
- Fixed a bug where Blank Node IDs in RDF/XML output could be invalid
- Fixed a bug with some queries falsely being considered ASK queries and their results improperly handled for Sesame stores
- Fixed a bug with bad serialisation of sub-queries
- Parsing
- Constructors for BlockingTextReader are now private, use BlockingTextReader.Create() static instead
- Query
- Major refactor of SPARQL expression evaluation to make it more efficient and maintainable
- Updated to latest SPARQL 1.1 specifications
- Replaced the Join algorithm with a new algorithm which is significantly faster
- Improved selectivity of TriplePattern.GetTriples()
- Some refactoring of ISparqlDataset interface
- A WebDemandDataset for creating a dataset with load on demand capabilities
- Enabled StrictAlgebraOptimiser and IdentityFilterOptimiser by default
- Update
- GenericUpdateProcessor is more intelligent in determining whether a command can be applied to stores that don't have native SPARQL Update support
- Writing
- Support for outputting W3C standard Turtle (allows for more URIs to be compressed to QNames)
- WriteThroughHandler periodically flushes the output stream
Removed
- Legacy SQL Store support
- Obsolete BlockingStreamReader class
- Obsolete QueryText method on SparqlParameterizedString
- Dependency on MySql.Data is no longer required by any library in the release
- Obsolete NativeTripleStore marked as unusable
- Obsolete QueryTime and QueryTimeTicks properties removed - use QueryExecutionTime instead
- Obsolete SparqlQuery.Evaluate() marked as unusable
0.5.1 Beta
----------
Added
- Parsing
- Support for registering arbitrary parsers via MimeTypesHelper
- Added a SPARQL TSV Parser
- Query
- Added support for new SPARQL 1.1 functions STRAFTER, STRBEFORE and STRREPLACE
- Storage
- Added Dydra Support
Changed
- Bug Fixes
- Fixed a Bug where NegotiateByFileExtension would cause a HTTP 500 error rather than failing silently
- Fixed a Bug with NegotiateByFileExtension and nested handler paths
- Fixed a rare corner case Bug related to round-trip serialization of literals containing backslashes
- Fixed a bug with some COPY/MOVE commands when processed with Leviathan
- Fixed a bug related to data loading of Blank Node heavy data into the new ADO Store
- Fixed a bug with the BaseAdoDataset reporting incorrectly for HasGraph()
- Fixed a bug with HtmlSchemaWriter documenting anonymous classes
- Fixed some bugs with Stardog connectivity due to changes in their HTTP server code
- Fixed a bug with CSV output
- Fixed a bug with SPARQL XML Parser not always decoding XML entities
- Fixed a performance bug with new SQL backend that occurs primarily when the database server is not local
on the network i.e. when database server is remote
- Query
- AVG() aggregate can now be applied over non-numeric expressions
- Storage
- Performance improvements to querying ADO stores
- Added support for additional reasoning modes for Stardog
- Update
- Made LeviathanUpdateProcessor more extensible
- Now supports a custom query processor used in evaluating WHERE clauses
- Writing
- Updated SPARQL CSV/TSV output to match SPARQL 1.1 specification
0.5.0 Beta
----------
Added
- Core API
- Added .Net serialization support to INode, IGraph, SparqlResultSet and SparqlResult
- Support for both IXmlSerializable and ISerializable
- Added callback delegates and various async alternatives to synchronous HTTP to various features throughout
the API to fix an issue with Silverlight/WP7 but also to provide easier async calls to users on all
platforms
- Added a PersistentTripleStore which is a propery in-memory view onto a persistent store where changes to the
in-memory state can be persisted/discarded as desired
- Configuration API
- Added a bunch of new properties which can be attached to HTTP Handler definitions to define writer behaviour
- Added new classes that can be used to define Parsers and Writers, ASP.Net configuration auto-detects these
- Parsing
- Added more IRdfHandler and ISparqlResultsHandler implementations
- ResultsWriteThroughHandler for serializing SPARQL Results directly
- MergingResultSetHandler for loading multiple result sets into a single SparqlResultSet object
- Query
- Added a ExplainQueryProcessor which can be used to execute queries and show explanations of their evaluation
- Additional Algebra Operators
- Added parallelised Join and Union operators that can be used as desired
- Added explicit operators for things like BIND, Subqueries and property paths which can be used as desired
- Optimisation support to SPARQL Update commands wherever possible
- Additional Optimisers
- Added a StrictAlgebraOptimiser which transforms to the strict algebra form of the algebra
- Added a ParallelEvaluationOptimiser which transforms the algebra into a parallel executable form where possible
- Added an IdentityFilterOptimiser which applies Identity Filter optimisations
- Storage
- Added revised SQL backend in seperate dotNetRDF.Data.Sql.dll library
- Added ListGraphs() support for Fuseki
- Writing
- Added additional interfaces to Formatting namespace
- Added formatters for RDF/XML and SPARQL XML Results
Changed
- Dependency Changes
- OpenLink.Data.Virtuoso.dll removed as dependency - Virtuoso support now in seperate dotNetRDF.Data.Virtuoso.dll library
- Updated to latest Json.Net release - now using Newtonsoft.Json.Net35.dll as the standard build of Json.Net has moved to .Net 4.0
- Bug Fixes
- SPARQL Tokeniser allows more than one ORDER BY keyword
- Turtle Parser now permits nested collections i.e. ( "item" ( "subcollection" ) )
- Fixes to AllegroGraphConnector to support 4.x HTTP protocol changes based on bug reports from Sascha Dech
- Fixed a configuration bug with BaseDatasetHandlerConfiguration
- Fixed a bug where NegotiateByFileExtension module could cause special ASP.Net extensions like .axd to not be respected properly
- Fixed a bug where attempts to use synchronous HTTP on Silverlight/WP7 would hang applications
- Fixed a bug where temporary namespace generation for properties would fail in PrettyRdfXmlWriter
- Fixed a bug where IF evaluation deviated from latest SPARQL 1.1 Query working drafts
- Query
- Further refactored the Leviathan engine to make it even easier to extend
- The majority of methods on the engine can now be overridden
- Abstracted Set to an interface
- RDF and Results Handler may now be used to process query results in all places where an IGraph or SparqlResultSet can be returned
i.e. new overloads for all relevant query related methods
- Describe API Changes
- Breaking changes to the Describe API to allow for use of RDF Handlers for streaming processing of the returned results
- Optimisation Improvements
- Improvements to internal data structures for faster evaluation
- Subqueries now get the parent queries Algebra Optimisers applied to them
- Storage
- Improved support for AllegroGraph 4x including support for root catalog
- Additions to the IGenericIOManager interface
- Added more overloads for LoadGraph() which load using an IRdfHandler
Removed
- Marked various things as obsolete but usable
- All ISqlIOManager related classes
- GenericReader, GenericWriter and GenericStoreWriter
- TalisTripleStore and VirtuosoTripleStore
- SparqlQuery.Evaluate() methods
- Marked some classes previously marked obsolete as unusable
- BackgroundPersistedGraph
- BlockingStreamReader
- Old form of ToCache() method on IUriLoader interface
- Old form of GraphPattern.Optimise() method
- QueryText property of SparqlParameterizedString
- Old form of WriterHelper.FindCollections() method
0.4.1 Beta
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Added
- General Improvements
- Added a GraphPersistenceWrapper which is an IGraph implementation which tracks changes to the wrapped
Graph when those changes pass through it and allow the changes to be Flushed/Discarded as desired
- Added a StoreGraphPersistenceWrapper which flushes changes to some underlying IGenericIOManager
- Added a FileGraphPersistenceWrapper which flushes changes to a file on disk
- Improved the HTTP Accept Headers we send
- Parsing
- New IRdfHandler and ISparqlResultsHandler interface allows parsing to arbitrary RDF/SPARQL Results Handlers
- Provided various implementations of this:
- CountHandler for just counting triples
- GraphHandler for parsing into IGraph instances
- NullHandler for discarding the triples (useful for just validating the RDF)
- PagingHandler for getting a slice of the triples
- ResultCountHandler for counting SPARQL Results
- ResultSetHandler for parsing SPARQL Results into SparqlResultSet's
- StoreHandler for parsing into ITripleStore instances
- StoreCountHandler for counting Triples and Graphs
- WriteThroughHandler for generating RDF output while parsing
- WriteToStoreHandler for sending the triples in batches to some underlying store
- ChainedHandler and MultiHandler for combining multiple RDF handlers together
- CancellableHandler for wrapping other Handlers and being able to cancel parsing (assuming async code)
- Update
- Added support for Timeouts when using the LeviathanUpdateProcessor and the ProcessCommandSet() method
- Added support for transactions
- Writing
- Added a PrettyRdfXmlWriter which is a streaming writer which writes more readable RDF/XML than the other RDF/XML writers
- ASP.Net Integration
- Added NegotiateByFileExtension which is an IHttpModule that can be used to provide content negotiation by file extension
seamlessly for all existing IHttpHandler implementations
Changed