Package org.datanucleus.store.query

Package providing implementation of query language support for datastores.

See:
Description

Interface Summary

QueryResult	Lazy collection results from a Query.
ResultObjectFactory	An object that reads result set rows and returns corresponding object(s) from them.

Class Summary

AbstractCandidateLazyLoadList	Abstract implementation of a lazy load list for candidates.
AbstractJavaQuery	Abstract representation of a Java-based query.
AbstractJDOQLQuery	Abstract representation of a JDOQL query.
AbstractJPQLQuery	Abstract representation of a JPQL query used by DataNucleus.
AbstractLazyLoadList	Abstract implementation of a lazy loaded list of (persistent) objects.
AbstractQueryResult	Abstract representation of a QueryResult.
AbstractQueryResultIterator	Abstract implementation of an iterator for query results.
AbstractSQLQuery	Base definition of a query using SQL.
CandidateIdsQueryResult	QueryResult taking in the list of identities of the objects of candidate type.
Query	Abstract implementation for all queries in DataNucleus.
QueryManager	Manages the runtime, metadata and lifecycle of queries.

Exception Summary

NoQueryResultsException	Exception thrown from internal query mechanism if no results are returned.
QueryCompilerSyntaxException	Exception thrown when a query compiler finds an error relative to the expected syntax.
QueryInterruptedException	Exception thrown when a query execution is interrupted.
QueryInvalidParametersException	Exception thrown when invalid arguments/parameters are given.
QueryNotUniqueException	This exception is thrown when a user runs a Query and has marked it as UNIQUE, but it returns more than 1 object.
QueryTimeoutException	Exception thrown when a query times out beyond some specified timeout duration.

Package org.datanucleus.store.query Description

Package providing implementation of query language support for datastores. Classes provided here are typically extended by datastore packages to provide their own support for JDOQL, JPQL, SQL etc.