org.quartz.jobs

Class JobDataMap

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<String,Object>

org.quartz.jobs.JobDataMap

All Implemented Interfaces:

Serializable, Cloneable, Map<String,Object>

public class JobDataMap
extends HashMap<String,Object>
implements Serializable

Holds state information for Job instances.

JobDataMap instances are stored once when the Job is added to a scheduler. They are also re-persisted after every execution of StatefulJob instances.

JobDataMap instances can also be stored with a Trigger. This can be useful in the case where you have a Job that is stored in the scheduler for regular/repeated use by multiple Triggers, yet with each independent triggering, you want to supply the Job with different data inputs.

The JobExecutionContext passed to a Job at execution time also contains a convenience JobDataMap that is the result of merging the contents of the trigger's JobDataMap (if any) over the Job's JobDataMap (if any).

Author:

James House, timmolter

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
JobDataMap() Create an empty JobDataMap.
JobDataMap(JobDataMap jobDataMap) Constructor - creates a shallow copy of the passed in JobDataMap

Method Summary

Modifier and Type	Method and Description
String	getString(String key) Retrieve the identified String value from the JobDataMap.
JobDataMap	shallowCopy()

Methods inherited from class java.util.HashMap

clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, get, getOrDefault, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

JobDataMap

public JobDataMap()

Create an empty JobDataMap.

JobDataMap

public JobDataMap(JobDataMap jobDataMap)

Constructor - creates a shallow copy of the passed in JobDataMap

Parameters:

jobDataMap -

Method Detail

getString

public String getString(String key)

Retrieve the identified String value from the JobDataMap.

Throws:

ClassCastException - if the identified object is not a String.

shallowCopy

public JobDataMap shallowCopy()