org.apache.oozie.executor.jpa

Class CoordJobInfoGetJPAExecutor

java.lang.Object

org.apache.oozie.executor.jpa.CoordJobInfoGetJPAExecutor

All Implemented Interfaces:

JPAExecutor<CoordinatorJobInfo>

public class CoordJobInfoGetJPAExecutor
extends Object
implements JPAExecutor<CoordinatorJobInfo>

Load the CoordinatorInfo and return it.

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_ORDER_BY

Constructor Summary

Constructors

Constructor and Description
CoordJobInfoGetJPAExecutor(Map<String,List<String>> filter, int start, int len)

Method Summary

Methods

Modifier and Type	Method and Description
CoordinatorJobInfo	execute(javax.persistence.EntityManager em) Method that encapsulates JPA access operations.
String	getName() Return the name of the JPA executor.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_ORDER_BY

public static final String DEFAULT_ORDER_BY

See Also:

Constant Field Values

Constructor Detail

CoordJobInfoGetJPAExecutor

public CoordJobInfoGetJPAExecutor(Map<String,List<String>> filter,
                          int start,
                          int len)

Method Detail

getName

public String getName()

Description copied from interface: JPAExecutor

Return the name of the JPA executor. Used for logging and instrumentation.

Specified by:

getName in interface JPAExecutor<CoordinatorJobInfo>

Returns:

the name of the JPA executor.

execute

public CoordinatorJobInfo execute(javax.persistence.EntityManager em)
                           throws JPAExecutorException

Description copied from interface: JPAExecutor

Method that encapsulates JPA access operations.

Implementations should not close the received EntityManager.

Implementations should commit any transaction before ending, else the transaction will be rolled back.

Specified by:

execute in interface JPAExecutor<CoordinatorJobInfo>

Parameters:

em - an active EntityManager

Returns:

a return value if any.

Throws:

JPAExecutorException - thrown if a jpa executor failed