org.apache.oozie.executor.jpa

Class BulkJPAExecutor

java.lang.Object

org.apache.oozie.executor.jpa.BulkJPAExecutor

All Implemented Interfaces:

JPAExecutor<BulkResponseInfo>

public class BulkJPAExecutor
extends Object
implements JPAExecutor<BulkResponseInfo>

The query executor class for bulk monitoring queries i.e. debugging bundle -> coord actions directly

Constructor Summary

Constructors

Constructor and Description
BulkJPAExecutor(Map<String,List<String>> bulkFilter, int start, int len)

Method Summary

Methods

Modifier and Type	Method and Description
BulkResponseInfo	execute(javax.persistence.EntityManager em) Method that encapsulates JPA access operations.
String	getName() Return the name of the JPA executor.
static List<String>	nullToEmpty(List<String> input)

Methods inherited from class java.lang.Object

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

Constructor Detail

BulkJPAExecutor

public BulkJPAExecutor(Map<String,List<String>> bulkFilter,
               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<BulkResponseInfo>

Returns:

the name of the JPA executor.

execute

public BulkResponseInfo 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<BulkResponseInfo>

Parameters:

em - an active EntityManager

Returns:

a return value if any.

Throws:

JPAExecutorException - thrown if a jpa executor failed

nullToEmpty

public static List<String> nullToEmpty(List<String> input)