Package org.apache.cayenne.query
Class DeleteBatchQuery
java.lang.Object
org.apache.cayenne.query.BatchQuery
org.apache.cayenne.query.DeleteBatchQuery
- All Implemented Interfaces:
Serializable,Query
public class DeleteBatchQuery extends BatchQuery
Batched delete query.
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description protected booleanusingOptimisticLockingFields inherited from class org.apache.cayenne.query.BatchQuery
dbAttributes, dbEntity, rows -
Constructor Summary
Constructors Constructor Description DeleteBatchQuery(DbEntity dbEntity, List<DbAttribute> qualifierAttributes, Collection<String> nullQualifierNames, int batchCapacity)Creates new DeleteBatchQuery. -
Method Summary
Modifier and Type Method Description voidadd(Map<String,Object> dataObjectId)booleanisNull(DbAttribute attribute)Returns true if a given attribute always has a null value in the batch.booleanisUsingOptimisticLocking()Returns true if the batch query uses optimistic locking.voidsetUsingOptimisticLocking(boolean usingOptimisticLocking)Methods inherited from class org.apache.cayenne.query.BatchQuery
createSQLAction, getDbAttributes, getDbEntity, getMetaData, getRows, route
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Field Details
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usingOptimisticLocking
protected boolean usingOptimisticLocking
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Constructor Details
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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.
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Method Details
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isNull
Returns true if a given attribute always has a null value in the batch.- Since:
- 1.2
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isUsingOptimisticLocking
public boolean isUsingOptimisticLocking()Returns true if the batch query uses optimistic locking.- Overrides:
isUsingOptimisticLockingin classBatchQuery- Since:
- 1.2
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setUsingOptimisticLocking
public void setUsingOptimisticLocking(boolean usingOptimisticLocking)- Since:
- 1.2
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add
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