Package org.apache.openjpa.kernel

Class MethodStoreQuery

java.lang.Object

org.apache.openjpa.kernel.AbstractStoreQuery

org.apache.openjpa.kernel.MethodStoreQuery

All Implemented Interfaces:

Serializable, QueryOperations, StoreQuery

public class MethodStoreQuery
extends AbstractStoreQuery

A query that is executed by a user-defined method.

Author:

Abe White

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.openjpa.kernel.AbstractStoreQuery

AbstractStoreQuery.AbstractExecutor

Nested classes/interfaces inherited from interface org.apache.openjpa.kernel.StoreQuery

StoreQuery.Executor, StoreQuery.Range

Field Summary

Fields

Modifier and Type	Field	Description
static String	LANGUAGE

Fields inherited from class org.apache.openjpa.kernel.AbstractStoreQuery

ctx

Fields inherited from interface org.apache.openjpa.kernel.QueryOperations

OP_DELETE, OP_SELECT, OP_UPDATE

Fields inherited from interface org.apache.openjpa.kernel.StoreQuery

EMPTY_BOOLEANS, EMPTY_CLASSES, EMPTY_METAS, EMPTY_OBJECTS, EMPTY_ORDERED_PARAMS, EMPTY_PARAMS, EMPTY_STRINGS

Constructor Summary

Constructors

Constructor	Description
MethodStoreQuery()

Method Summary

Modifier and Type	Method	Description
void	invalidateCompilation()	Invalidate any internal compilation state.
StoreQuery.Executor	newDataStoreExecutor(ClassMetaData meta, boolean subs)	Return an executor for datastore execution of this query.
StoreQuery.Executor	newInMemoryExecutor(ClassMetaData meta, boolean subs)	Return an executor for in-memory execution of this query.
boolean	requiresCandidateType()	Whether this query requires a candidate class.
boolean	supportsDataStoreExecution()	True if this query supports datastore execution, false if it can only run in memory.
boolean	supportsInMemoryExecution()	True if this query supports in-memory execution, false if it can only run against the datastore.

Methods inherited from class org.apache.openjpa.kernel.AbstractStoreQuery

evaluate, getAggregateListener, getCompilation, getContext, getFilterListener, newCompilation, newCompilationKey, populateFromCompilation, requiresParameterDeclarations, setContext, setQuery, supportsAbstractExecutors, supportsParameterDeclarations

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LANGUAGE

public static final String LANGUAGE

See Also:

Constant Field Values

Constructor Detail

MethodStoreQuery

public MethodStoreQuery()

Method Detail

invalidateCompilation

public void invalidateCompilation()

Description copied from interface: StoreQuery

Invalidate any internal compilation state.

Specified by:

invalidateCompilation in interface StoreQuery

Overrides:

invalidateCompilation in class AbstractStoreQuery

newInMemoryExecutor

public StoreQuery.Executor newInMemoryExecutor(ClassMetaData meta,
                                               boolean subs)

Description copied from interface: StoreQuery

Return an executor for in-memory execution of this query. Executors must be cachable and thread safe. If this class returns true from StoreQuery.supportsAbstractExecutors(), the given metadata will always be for the candidate class of this query, or possibly null if the candidate class is not itself persistence capable (like an interface or abstract base class). Otherwise, the given type will be a mapped class.

Specified by:

newInMemoryExecutor in interface StoreQuery

Overrides:

newInMemoryExecutor in class AbstractStoreQuery

subs - whether to include dependent mapped subclasses in the results; independent subclasses should never be included

newDataStoreExecutor

public StoreQuery.Executor newDataStoreExecutor(ClassMetaData meta,
                                                boolean subs)

Description copied from interface: StoreQuery

Return an executor for datastore execution of this query. Executors must be cachable and thread safe. If this class returns true from StoreQuery.supportsAbstractExecutors(), the given metadata will always be for the candidate class of this query, or possibly null if the candidate class is not itself persistence capable (like an interface or abstract base class). Otherwise, the given type will be a mapped class.

Specified by:

newDataStoreExecutor in interface StoreQuery

Overrides:

newDataStoreExecutor in class AbstractStoreQuery

subs - whether to include dependent mapped subclasses in the results; independent subclasses should never be included

supportsInMemoryExecution

public boolean supportsInMemoryExecution()

Description copied from interface: StoreQuery

True if this query supports in-memory execution, false if it can only run against the datastore.

Specified by:

supportsInMemoryExecution in interface StoreQuery

Overrides:

supportsInMemoryExecution in class AbstractStoreQuery

supportsDataStoreExecution

public boolean supportsDataStoreExecution()

Description copied from interface: StoreQuery

True if this query supports datastore execution, false if it can only run in memory.

Specified by:

supportsDataStoreExecution in interface StoreQuery

Overrides:

supportsDataStoreExecution in class AbstractStoreQuery

requiresCandidateType

public boolean requiresCandidateType()

Description copied from interface: StoreQuery

Whether this query requires a candidate class.

Specified by:

requiresCandidateType in interface StoreQuery

Overrides:

requiresCandidateType in class AbstractStoreQuery