Code_Examples

Various test cases located in bigdata/src/test, bigdata-rdf/src/test, bigdata-sail/src/test packages could be useful for you as code examples demonstrating using Blazegraph in different situations.

For example:

Class Name	Description
SampleCode	Demonstrate how to use bigdata. You are free to use this code for whatever purpose without restriction.
SparqlBuilder	Demonstrate how to use bigdata. You are free to use this code for whatever purpose without restriction.
NSSEmbeddedExample	Class demonstrates how to start the NanoSparqlServer from within embedded code.
TestAccessPaths	Test suite for LexiconRelation newAccessPath(IIndexManager, IPredicate, IKeyOrder).
TestAddTerms	Test suite for adding terms to the lexicon.
TestFullTextIndex	Test of adding terms with the full text index enabled and of lookup of terms by tokens which appear within those terms.
TestBigdataSailWithQuads	Test suite for the BigdataSail with quads enabled. The provenance mode is disabled. Inference is disabled. This version of the test suite uses the pipeline join algorithm.
TestQuadsAPI	Unit tests the quads aspects of the BigdataSail implementation.
TestProvenanceQuery	Test suite for high-level query against a graph containing statements about statements.
TestSearchQuery	Test suite for high-level query against a graph containing statements about statements.
TestEncodeDecodeValue	Test suite for utility class to encode and decode RDF Values for interchange via the REST API.
TestSubqueryPatterns	Test suite for translating queries which use subquery constructions
TestTriplePatternBuilder	Test suite for building up triple patterns
TestSPO	Test suite for the SPO class.
TestSPOAccessPath	Test suite for SPOAccessPath.
TestSPORelation	Test ability to insert, update, or remove elements from a relation and the ability to select the right access path given a predicate for that relation and query for those elements
JournalExample	This example show how to create a Journal, register a BTree and perform basic operations on the BTree. The Journal is the right choice when you want a standalone persistence store. When using the Journal in this manner, you must remember to Journal commit() your write sets.
JournalReadOnlyTxExample	This example illustrates how to safely interact with a zero retention configuration of the RWStore using a mixture of read-only transactions and unisolated index writes.
JournalTxExample	This example show how to create a Journal, register a BTree, start a transaction, obtain a B+Tree view isolated by that transaction, perform basic operations on the BTree, and commit the transaction.
ReadWriteIndexExample	This example shows how to wrap a B+Tree with a skin which makes it thread safe for concurrent readers and writers (the underlying B+Tree implementation is already thread-safe for concurrent readers, but is single-threaded for mutation).
ReadWriteIndexTxExample	This example shows how to wrap a B+Tree with a skin which makes it thread safe for concurrent readers and writers (the underlying B+Tree implementation is already thread-safe for concurrent readers, but is single-threaded for mutation).
TempStoreExample	Sample for for using the BTree with a TemporaryStore.