org.apache.openjpa.jdbc.kernel

Class FinderQueryImpl

java.lang.Object

org.apache.openjpa.jdbc.kernel.FinderQueryImpl

All Implemented Interfaces:

FinderQuery<ClassMapping,SelectExecutor,Result>

public class FinderQueryImpl
extends java.lang.Object
implements FinderQuery<ClassMapping,SelectExecutor,Result>

Implements Finder Query identified by ClassMappping for SelectExecutor that can be executed to generate Result.

Since:

2.0.0

Author:

Pinaki Poddar

Method Summary

Methods

Modifier and Type	Method and Description
Result	execute(OpenJPAStateManager sm, StoreManager store, FetchConfiguration fetch) Execute the query for a given instance.
SelectExecutor	getDelegate() Gets the value to which this receiver delegates its execution.
ClassMapping	getIdentifier() Gets the identifier of this receiver.
Column[]	getPKColumns()
java.lang.String	getQueryString() Gets the query string.
(package private) static FinderQueryImpl	newFinder(ClassMapping mapping, SelectExecutor select) Attempts to construct a FinderQuery from the given Select for the given mapping.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

newFinder

static FinderQueryImpl newFinder(ClassMapping mapping,
                        SelectExecutor select)

Attempts to construct a FinderQuery from the given Select for the given mapping. The given Select may not be amenable for caching and then a null value is returned.

getIdentifier

public ClassMapping getIdentifier()

Description copied from interface: FinderQuery

Gets the identifier of this receiver.

Specified by:

getIdentifier in interface FinderQuery<ClassMapping,SelectExecutor,Result>

getDelegate

public SelectExecutor getDelegate()

Description copied from interface: FinderQuery

Gets the value to which this receiver delegates its execution.

Specified by:

getDelegate in interface FinderQuery<ClassMapping,SelectExecutor,Result>

Returns:

getQueryString

public java.lang.String getQueryString()

Description copied from interface: FinderQuery

Gets the query string.

Specified by:

getQueryString in interface FinderQuery<ClassMapping,SelectExecutor,Result>

getPKColumns

public Column[] getPKColumns()

execute

public Result execute(OpenJPAStateManager sm,
             StoreManager store,
             FetchConfiguration fetch)

Description copied from interface: FinderQuery

Execute the query for a given instance.

Specified by:

execute in interface FinderQuery<ClassMapping,SelectExecutor,Result>

Parameters:

sm - the StateManager for a given instance carrying the primary key values.

store - the data store against which the query is to be executed.

fetch - fetch parameters

Returns:

the result of execution.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object