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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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