org.openspaces.jpa.openjpa

Class StoreManagerQuery

java.lang.Object

org.apache.openjpa.kernel.AbstractStoreQuery

org.apache.openjpa.kernel.ExpressionStoreQuery

org.openspaces.jpa.openjpa.StoreManagerQuery

All Implemented Interfaces:

Serializable, org.apache.openjpa.kernel.QueryOperations, org.apache.openjpa.kernel.StoreQuery

public class StoreManagerQuery
extends org.apache.openjpa.kernel.ExpressionStoreQuery

Executes select queries. update & delete SQL operations are performed in memory and executed on commit. The provided OpenJPA expression tree is translated to either GigaSpaces' SQLQuery or JDBC.

Since:

8.0

Author:

idan

See Also:

Serialized Form

Nested Class Summary

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

org.apache.openjpa.kernel.ExpressionStoreQuery.AbstractExpressionExecutor, org.apache.openjpa.kernel.ExpressionStoreQuery.DataStoreExecutor

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

org.apache.openjpa.kernel.AbstractStoreQuery.AbstractExecutor

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

org.apache.openjpa.kernel.StoreQuery.Executor, org.apache.openjpa.kernel.StoreQuery.Range

Field Summary

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

ctx

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

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

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

OP_DELETE, OP_SELECT, OP_UPDATE

Constructor Summary

Constructors

Constructor and Description
StoreManagerQuery(org.apache.openjpa.kernel.exps.ExpressionParser parser, StoreManager store)

Method Summary

Modifier and Type	Method and Description
protected org.apache.openjpa.lib.rop.ResultObjectProvider	executeQuery(org.apache.openjpa.kernel.StoreQuery.Executor ex, org.apache.openjpa.meta.ClassMetaData classMetaData, org.apache.openjpa.meta.ClassMetaData[] types, boolean subClasses, org.apache.openjpa.kernel.exps.ExpressionFactory[] factories, org.apache.openjpa.kernel.exps.QueryExpressions[] expressions, Object[] parameters, org.apache.openjpa.kernel.StoreQuery.Range range) Execute the given expression against the given candidate extent.
protected String[]	getDataStoreActions(org.apache.openjpa.meta.ClassMetaData base, org.apache.openjpa.meta.ClassMetaData[] types, boolean subclasses, org.apache.openjpa.kernel.exps.ExpressionFactory[] facts, org.apache.openjpa.kernel.exps.QueryExpressions[] parsed, Object[] params, org.apache.openjpa.kernel.StoreQuery.Range range) Return the commands that will be sent to the datastore in order to execute the query, typically in the database's native language.
protected org.apache.openjpa.kernel.exps.ExpressionFactory	getExpressionFactory(org.apache.openjpa.meta.ClassMetaData type) Return an ExpressionFactory to use to create an expression to be executed against an extent.
protected org.apache.openjpa.meta.ClassMetaData[]	getIndependentExpressionCandidates(org.apache.openjpa.meta.ClassMetaData type, boolean subclasses) Return the assignable types for the given metadata whose expression trees must be compiled independently.
boolean	supportsDataStoreExecution()

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

executeDelete, executeUpdate, getFilterListener, getResolver, invalidateCompilation, newCompilation, newDataStoreExecutor, newInMemoryExecutor, populateFromCompilation, setQuery, supportsInMemoryExecution

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

evaluate, getAggregateListener, getContext, newCompilationKey, requiresCandidateType, requiresParameterDeclarations, setContext, supportsAbstractExecutors, supportsParameterDeclarations

Methods inherited from class java.lang.Object

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

Constructor Detail

StoreManagerQuery

public StoreManagerQuery(org.apache.openjpa.kernel.exps.ExpressionParser parser,
                         StoreManager store)

Method Detail

supportsDataStoreExecution

public boolean supportsDataStoreExecution()

Specified by:

supportsDataStoreExecution in interface org.apache.openjpa.kernel.StoreQuery

Overrides:

supportsDataStoreExecution in class org.apache.openjpa.kernel.AbstractStoreQuery

executeQuery

protected org.apache.openjpa.lib.rop.ResultObjectProvider executeQuery(org.apache.openjpa.kernel.StoreQuery.Executor ex,
                                                                       org.apache.openjpa.meta.ClassMetaData classMetaData,
                                                                       org.apache.openjpa.meta.ClassMetaData[] types,
                                                                       boolean subClasses,
                                                                       org.apache.openjpa.kernel.exps.ExpressionFactory[] factories,
                                                                       org.apache.openjpa.kernel.exps.QueryExpressions[] expressions,
                                                                       Object[] parameters,
                                                                       org.apache.openjpa.kernel.StoreQuery.Range range)

Execute the given expression against the given candidate extent.

Overrides:

executeQuery in class org.apache.openjpa.kernel.ExpressionStoreQuery

getDataStoreActions

protected String[] getDataStoreActions(org.apache.openjpa.meta.ClassMetaData base,
                                       org.apache.openjpa.meta.ClassMetaData[] types,
                                       boolean subclasses,
                                       org.apache.openjpa.kernel.exps.ExpressionFactory[] facts,
                                       org.apache.openjpa.kernel.exps.QueryExpressions[] parsed,
                                       Object[] params,
                                       org.apache.openjpa.kernel.StoreQuery.Range range)

Return the commands that will be sent to the datastore in order to execute the query, typically in the database's native language.

Overrides:

getDataStoreActions in class org.apache.openjpa.kernel.ExpressionStoreQuery

Parameters:

base - the base type the query should match

types - the independent candidate types

subclasses - true if subclasses should be included in the results

facts - the expression factory used to build the query for each base type

parsed - the parsed query values

params - parameter values, or empty array

range - result range

Returns:

a textual description of the query to execute

getIndependentExpressionCandidates

protected org.apache.openjpa.meta.ClassMetaData[] getIndependentExpressionCandidates(org.apache.openjpa.meta.ClassMetaData type,
                                                                                     boolean subclasses)

Return the assignable types for the given metadata whose expression trees must be compiled independently.

Overrides:

getIndependentExpressionCandidates in class org.apache.openjpa.kernel.ExpressionStoreQuery

getExpressionFactory

protected org.apache.openjpa.kernel.exps.ExpressionFactory getExpressionFactory(org.apache.openjpa.meta.ClassMetaData type)

Return an ExpressionFactory to use to create an expression to be executed against an extent. Each factory will be used to compile one filter only. The factory must be cachable.

Overrides:

getExpressionFactory in class org.apache.openjpa.kernel.ExpressionStoreQuery