org.apache.cayenne.query

Class DeleteBatchQuery

java.lang.Object

org.apache.cayenne.query.BatchQuery

org.apache.cayenne.query.DeleteBatchQuery

All Implemented Interfaces:

Serializable, ConfigurationNode, Query

public class DeleteBatchQuery
extends BatchQuery

Batched delete query.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	usingOptimisticLocking

Fields inherited from class org.apache.cayenne.query.BatchQuery

dataMap, dbAttributes, dbEntity, name, rows

Constructor Summary

Constructors

Constructor and Description
DeleteBatchQuery(DbEntity dbEntity, List<DbAttribute> qualifierAttributes, Collection<String> nullQualifierNames, int batchCapacity) Creates new DeleteBatchQuery.

Method Summary

Methods

Modifier and Type	Method and Description
void	add(Map<String,Object> dataObjectId)
boolean	isNull(DbAttribute attribute) Returns true if a given attribute always has a null value in the batch.
boolean	isUsingOptimisticLocking() Returns true if the batch query uses optimistic locking.
void	setUsingOptimisticLocking(boolean usingOptimisticLocking)

Methods inherited from class org.apache.cayenne.query.BatchQuery

acceptVisitor, createSQLAction, getDataMap, getDbAttributes, getDbEntity, getMetaData, getName, getRows, route, setDataMap, setName, size

Methods inherited from class java.lang.Object

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

Field Detail

usingOptimisticLocking

protected boolean usingOptimisticLocking

Constructor Detail

DeleteBatchQuery

public DeleteBatchQuery(DbEntity dbEntity,
                List<DbAttribute> qualifierAttributes,
                Collection<String> nullQualifierNames,
                int batchCapacity)

Creates new DeleteBatchQuery.

Parameters:

dbEntity - Table or view to delete.

qualifierAttributes - DbAttributes used in the WHERE clause.

nullQualifierNames - DbAttribute names in the WHERE clause that have null values.

batchCapacity - Estimated size of the batch.

Method Detail

isNull

public boolean isNull(DbAttribute attribute)

Returns true if a given attribute always has a null value in the batch.

Since:

1.2

isUsingOptimisticLocking

public boolean isUsingOptimisticLocking()

Returns true if the batch query uses optimistic locking.

Overrides:

isUsingOptimisticLocking in class BatchQuery

Since:

1.2

setUsingOptimisticLocking

public void setUsingOptimisticLocking(boolean usingOptimisticLocking)

Since:

1.2

add

public void add(Map<String,Object> dataObjectId)