Package org.datanucleus.store.federation
Class FederatedJDOQLQuery
java.lang.Object
org.datanucleus.store.query.Query
org.datanucleus.store.query.AbstractJavaQuery
org.datanucleus.store.query.AbstractJDOQLQuery
org.datanucleus.store.federation.FederatedJDOQLQuery
- All Implemented Interfaces:
Serializable
,ExecutionContextListener
JDOQL query that is federated across multiple datastores
- See Also:
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Nested Class Summary
Nested classes/interfaces inherited from class org.datanucleus.store.query.Query
Query.QueryType, Query.SubqueryDefinition
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Field Summary
FieldsFields inherited from class org.datanucleus.store.query.AbstractJavaQuery
candidateCollection, singleString
Fields inherited from class org.datanucleus.store.query.Query
candidateClass, candidateClassName, clr, compilation, ec, explicitParameters, explicitVariables, EXTENSION_CHECK_UNUSED_PARAMETERS, EXTENSION_CLOSE_RESULTS_AT_EC_CLOSE, EXTENSION_COMPILATION_CACHED, EXTENSION_COMPILE_OPTIMISE_VAR_THIS, EXTENSION_EVALUATE_IN_MEMORY, EXTENSION_EXCLUDE_SUBCLASSES, EXTENSION_FLUSH_BEFORE_EXECUTION, EXTENSION_JDOQL_ALLOW_ALL, EXTENSION_JDOQL_STRICT, EXTENSION_JPQL_ALLOW_RANGE, EXTENSION_JPQL_STRICT, EXTENSION_LOAD_RESULTS_AT_COMMIT, EXTENSION_QUERY_TYPE, EXTENSION_RESULT_CACHE_TYPE, EXTENSION_RESULT_CACHE_VALIDATE_OBJECTS, EXTENSION_RESULT_SIZE_METHOD, EXTENSION_RESULTS_CACHED, EXTENSION_SQL_ALLOW_ALL, EXTENSION_SQL_SYNTAX_CHECKS, EXTENSION_UPDATE_ALL_CANDIDATE_FIELDS, EXTENSION_USE_FETCH_PLAN, extensions, filter, from, fromInclNo, fromInclParam, grouping, having, ignoreCache, implicitParameters, imports, inputParameters, insertFields, insertSelectQuery, ordering, parameterNames, parsedImports, queryResults, range, result, resultClass, resultClassName, resultDistinct, storeMgr, subclasses, subqueries, tasks, toExclNo, toExclParam, type, unique, unmodifiable, update
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Constructor Summary
ConstructorsConstructorDescriptionFederatedJDOQLQuery
(StoreManager storeMgr, ExecutionContext ec) Constructs a new query instance that uses the given execution context.FederatedJDOQLQuery
(StoreManager storeMgr, ExecutionContext ec, String query) Constructor for a JDOQL query where the query is specified using the "Single-String" format.FederatedJDOQLQuery
(StoreManager storeMgr, ExecutionContext ec, FederatedJDOQLQuery q) Constructs a new query instance having the same criteria as the given query. -
Method Summary
Modifier and TypeMethodDescriptionprotected Object
performExecute
(Map parameters) Method to actually execute the query.Methods inherited from class org.datanucleus.store.query.AbstractJDOQLQuery
compileGeneric, compileInternal, compileSubqueries, getLanguage, getQueryCacheKey, getSingleStringQuery, getSupportedExtensions, setGrouping, setResult
Methods inherited from class org.datanucleus.store.query.AbstractJavaQuery
dereferenceFilter, discardCompiled, evaluateInMemory, performDeletePersistentAll, setCandidates, setCandidates, toString
Methods inherited from class org.datanucleus.store.query.Query
addExtension, addSubquery, applyImplicitParameterValueToCompilation, applyImplicitParameterValueToSubqueries, assertIsModifiable, assertIsOpen, assertSupportsCancel, cancel, cancel, cancelTaskObject, checkForMissingParameters, checkParameterTypesAgainstCompilation, checkUnusedParameters, close, closeAll, compile, declareExplicitParameters, declareExplicitVariables, declareImports, deepFindSymbolForParameterInCompilation, deletePersistentAll, deletePersistentAll, deletePersistentAll, deregisterTask, equals, execute, executeQuery, executeWithArray, executeWithMap, executionContextClosing, getBooleanExtensionProperty, getCandidateClass, getCandidateClassMetaData, getCandidateClassName, getCompilation, getDatastoreReadTimeoutMillis, getDatastoreWriteTimeoutMillis, getExecutionContext, getExplicitParametersDeclaration, getExplicitVariablesDeclaration, getExtension, getExtensions, getFetchPlan, getFilter, getFrom, getGrouping, getHaving, getIgnoreCache, getImplicitParameters, getImportsDeclaration, getInputParameters, getInsertFields, getInsertSelectQuery, getNativeQuery, getOrdering, getParameterMapForValues, getParsedImports, getQueryManager, getRange, getRangeFromIncl, getRangeFromInclParam, getRangeToExcl, getRangeToExclParam, getResult, getResultClass, getResultClassName, getResultDistinct, getSerializeRead, getStoreManager, getStringExtensionProperty, getSubqueryForVariable, getType, getUpdate, hashCode, hasSubqueryForVariable, isCompiled, isSubclasses, isUnique, isUnmodifiable, prepareDatastore, processesRangeInDatastoreQuery, registerTask, resolveClassDeclaration, setCacheResults, setCandidateClass, setCandidateClassName, setCompilation, setDatastoreReadTimeoutMillis, setDatastoreWriteTimeoutMillis, setExtensions, setFetchPlan, setFilter, setFrom, setHaving, setIgnoreCache, setImplicitParameter, setImplicitParameter, setInsertFields, setInsertSelectQuery, setOrdering, setRange, setRange, setResultClass, setResultClassName, setResultDistinct, setResultMetaData, setSerializeRead, setSubclasses, setType, setUnique, setUnmodifiable, setUpdate, shouldReturnSingleRow, supportsTimeout, useCaching, useFetchPlan, useResultsCaching
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Field Details
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serialVersionUID
private static final long serialVersionUID- See Also:
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Constructor Details
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FederatedJDOQLQuery
Constructs a new query instance that uses the given execution context.- Parameters:
storeMgr
- StoreManager for this queryec
- execution context
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FederatedJDOQLQuery
Constructs a new query instance having the same criteria as the given query.- Parameters:
storeMgr
- StoreManager for this queryec
- execution contextq
- The query from which to copy criteria.
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FederatedJDOQLQuery
Constructor for a JDOQL query where the query is specified using the "Single-String" format.- Parameters:
storeMgr
- StoreManager for this queryec
- execution contextquery
- The query string
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Method Details
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performExecute
Description copied from class:Query
Method to actually execute the query. To be implemented by extending classes for the particular query language.- Specified by:
performExecute
in classQuery
- Parameters:
parameters
- Map containing the parameters.- Returns:
- Query result - QueryResult if SELECT, or Long if BULK_UPDATE, BULK_DELETE
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