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java.lang.Objectorg.apache.cayenne.query.BatchQuery
org.apache.cayenne.query.DeleteBatchQuery
public class DeleteBatchQuery
Batched delete query.
Field Summary | |
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protected java.util.List<DbAttribute> |
dbAttributes
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protected java.util.List<java.util.Map> |
qualifierSnapshots
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protected boolean |
usingOptimisticLocking
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Fields inherited from class org.apache.cayenne.query.BatchQuery |
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batchIndex, dataMap, dbEntity, name |
Constructor Summary | |
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DeleteBatchQuery(DbEntity dbEntity,
java.util.Collection<DbAttribute> qualifierAttributes,
java.util.Collection<java.lang.String> nullQualifierNames,
int batchCapacity)
Creates new DeleteBatchQuery. |
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DeleteBatchQuery(DbEntity dbEntity,
int batchCapacity)
Creates new DeleteBatchQuery. |
Method Summary | |
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void |
add(java.util.Map dataObjectId)
|
java.util.Map |
getCurrentQualifier()
Returns a snapshot of the current qualifier values. |
java.util.List<DbAttribute> |
getDbAttributes()
Returns a list of DbAttributes describing batch parameters. |
java.util.Collection<DbAttribute> |
getQualifierAttributes()
|
java.lang.Object |
getValue(int dbAttributeIndex)
Returns a value at a given index for the current batch iteration. |
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)
|
int |
size()
Returns the number of parameter rows in a batch. |
Methods inherited from class org.apache.cayenne.query.BatchQuery |
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acceptVisitor, createSQLAction, getDataMap, getDbEntity, getMetaData, getName, getObjectId, getValue, isEmpty, next, reset, route, setDataMap, setName |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected java.util.List<java.util.Map> qualifierSnapshots
protected java.util.List<DbAttribute> dbAttributes
protected boolean usingOptimisticLocking
Constructor Detail |
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public DeleteBatchQuery(DbEntity dbEntity, int batchCapacity)
dbEntity
- Table or view to delete.batchCapacity
- Estimated size of the batch.public DeleteBatchQuery(DbEntity dbEntity, java.util.Collection<DbAttribute> qualifierAttributes, java.util.Collection<java.lang.String> nullQualifierNames, int batchCapacity)
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 |
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public boolean isNull(DbAttribute attribute)
public boolean isUsingOptimisticLocking()
isUsingOptimisticLocking
in class BatchQuery
public void setUsingOptimisticLocking(boolean usingOptimisticLocking)
public java.util.Collection<DbAttribute> getQualifierAttributes()
public java.lang.Object getValue(int dbAttributeIndex)
BatchQuery
getValue
in class BatchQuery
public void add(java.util.Map dataObjectId)
public int size()
BatchQuery
size
in class BatchQuery
public java.util.List<DbAttribute> getDbAttributes()
BatchQuery
getDbAttributes
in class BatchQuery
public java.util.Map getCurrentQualifier()
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