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