Package org.apache.openjpa.jdbc.kernel

Class PreparedSQLStoreQuery.PreparedSQLExecutor

java.lang.Object

org.apache.openjpa.kernel.AbstractStoreQuery.AbstractExecutor

org.apache.openjpa.kernel.ExpressionStoreQuery.AbstractExpressionExecutor

org.apache.openjpa.jdbc.kernel.PreparedSQLStoreQuery.PreparedSQLExecutor

All Implemented Interfaces:

StoreQuery.Executor

Enclosing class:

PreparedSQLStoreQuery

public static class PreparedSQLStoreQuery.PreparedSQLExecutor
extends ExpressionStoreQuery.AbstractExpressionExecutor

Executor of a prepared query uses the QueryExpressions of the original query available via the PreparedQuery.

Constructor Summary

Constructors

Constructor	Description
PreparedSQLExecutor(PreparedSQLStoreQuery q, ClassMetaData candidate)

Method Summary

Modifier and Type	Method	Description
ResultObjectProvider	executeQuery(StoreQuery q, java.lang.Object[] params, StoreQuery.Range range)	Return the result of executing this query with the given parameter values.
java.lang.Class[]	getProjectionTypes(StoreQuery q)	Return the expected types of the projections used by this query, or an empty array if not a projection.
QueryExpressions[]	getQueryExpressions()	Return the parsed query expressions for our candidate types.
java.lang.Object[]	toParameterArray(StoreQuery q, java.util.Map userParams)	Convert given userParams to an array whose ordering matches as per expected during executeXXX() methods.

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

assertNotContainer, getAccessPathMetaDatas, getAlias, getAscending, getOperation, getOrderedParameterTypes, getProjectionAliases, getRange, getResultClass, getResultShape, getUpdates, hasGrouping, isAggregate, isDistinct, isPacking, validate

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

executeDelete, executeUpdate, getDataStoreActions, getOrderingValue, getParameterTypes

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.openjpa.kernel.StoreQuery.Executor

executeDelete, executeUpdate, getDataStoreActions, getOrderingValue, getParameterTypes

Constructor Detail

PreparedSQLExecutor

public PreparedSQLExecutor(PreparedSQLStoreQuery q,
                           ClassMetaData candidate)

Method Detail

getQueryExpressions

public QueryExpressions[] getQueryExpressions()

Description copied from interface: StoreQuery.Executor

Return the parsed query expressions for our candidate types. The expressions are available only after query has been parsed.

Specified by:

getQueryExpressions in interface StoreQuery.Executor

Overrides:

getQueryExpressions in class AbstractStoreQuery.AbstractExecutor

getProjectionTypes

public java.lang.Class[] getProjectionTypes(StoreQuery q)

Description copied from interface: StoreQuery.Executor

Return the expected types of the projections used by this query, or an empty array if not a projection.

Specified by:

getProjectionTypes in interface StoreQuery.Executor

Overrides:

getProjectionTypes in class ExpressionStoreQuery.AbstractExpressionExecutor

executeQuery

public ResultObjectProvider executeQuery(StoreQuery q,
                                         java.lang.Object[] params,
                                         StoreQuery.Range range)

Description copied from interface: StoreQuery.Executor

Return the result of executing this query with the given parameter values. If this query is a projection and this executor does not pack results itself, each element of the returned result object provider should be an object array containing the projection values.

See Also:

StoreQuery.Executor.isPacking(org.apache.openjpa.kernel.StoreQuery)

toParameterArray

public java.lang.Object[] toParameterArray(StoreQuery q,
                                           java.util.Map userParams)

Convert given userParams to an array whose ordering matches as per expected during executeXXX() methods. The given userParams is already re-parameterized, so this method have to merely copy the given Map values.

Specified by:

toParameterArray in interface StoreQuery.Executor

Overrides:

toParameterArray in class ExpressionStoreQuery.AbstractExpressionExecutor

Returns:

array with parameter values ordered in the same way as this receiver's executeXXX() method expects.

See Also:

PreparedQueryImpl.reparametrize(Map, org.apache.openjpa.kernel.Broker)