org.apache.oozie.executor.jpa

Class CoordJobGetActionsSubsetJPAExecutor

java.lang.Object

org.apache.oozie.executor.jpa.CoordJobGetActionsSubsetJPAExecutor

All Implemented Interfaces:

JPAExecutor<java.util.List<CoordinatorActionBean>>

public class CoordJobGetActionsSubsetJPAExecutor
extends java.lang.Object
implements JPAExecutor<java.util.List<CoordinatorActionBean>>

Load coordinator actions by offset and len (a subset) for a coordinator job.

Constructor Summary

Constructors

Constructor and Description
CoordJobGetActionsSubsetJPAExecutor(java.lang.String coordJobId)
CoordJobGetActionsSubsetJPAExecutor(java.lang.String coordJobId, java.util.Map<Pair<java.lang.String,CoordinatorEngine.FILTER_COMPARATORS>,java.util.List<java.lang.Object>> filterMap, int offset, int len, boolean desc)

Method Summary

Methods

Modifier and Type	Method and Description
java.util.List<CoordinatorActionBean>	execute(javax.persistence.EntityManager em) Method that encapsulates JPA access operations.
java.lang.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

Constructor Detail

CoordJobGetActionsSubsetJPAExecutor

public CoordJobGetActionsSubsetJPAExecutor(java.lang.String coordJobId)

CoordJobGetActionsSubsetJPAExecutor

public CoordJobGetActionsSubsetJPAExecutor(java.lang.String coordJobId,
                                   java.util.Map<Pair<java.lang.String,CoordinatorEngine.FILTER_COMPARATORS>,java.util.List<java.lang.Object>> filterMap,
                                   int offset,
                                   int len,
                                   boolean desc)

Method Detail

getName

public java.lang.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<java.util.List<CoordinatorActionBean>>

Returns:

the name of the JPA executor.

execute

public java.util.List<CoordinatorActionBean> 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<java.util.List<CoordinatorActionBean>>

Parameters:

em - an active EntityManager

Returns:

a return value if any.

Throws:

JPAExecutorException - thrown if a jpa executor failed