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java.lang.Objectorg.apache.cayenne.query.BatchQuery
org.apache.cayenne.query.UpdateBatchQuery
public class UpdateBatchQuery
Batched UPDATE query.
Field Summary | |
---|---|
protected List |
objectIds
|
protected List |
qualifierSnapshots
|
protected List |
updateSnapshots
|
protected boolean |
usingOptimisticLocking
|
Fields inherited from class org.apache.cayenne.query.BatchQuery |
---|
batchIndex, dbEntity, name |
Constructor Summary | |
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UpdateBatchQuery(DbEntity dbEntity,
List qualifierAttributes,
List updatedAttribute,
Collection nullQualifierNames,
int batchCapacity)
Creates new UpdateBatchQuery. |
Method Summary | |
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void |
add(Map qualifierSnapshot,
Map updateSnapshot)
Adds a parameter row to the batch. |
void |
add(Map qualifierSnapshot,
Map updateSnapshot,
ObjectId id)
Adds a parameter row to the batch. |
Map |
getCurrentQualifier()
Returns a snapshot of the current qualifier values. |
List |
getDbAttributes()
Returns a list of DbAttributes describing batch parameters. |
ObjectId |
getObjectId()
Returns an ObjectId associated with the current batch iteration. |
List |
getQualifierAttributes()
|
List |
getUpdatedAttributes()
|
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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createSQLAction, getDbEntity, getMetaData, getName, getValue, isEmpty, next, reset, route, 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 List objectIds
protected List qualifierSnapshots
protected List updateSnapshots
protected boolean usingOptimisticLocking
Constructor Detail |
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public UpdateBatchQuery(DbEntity dbEntity, List qualifierAttributes, List updatedAttribute, Collection nullQualifierNames, int batchCapacity)
dbEntity
- Table or view to update.qualifierAttributes
- DbAttributes used in the WHERE clause.nullQualifierNames
- DbAttribute names in the WHERE clause that have null
values.updatedAttribute
- DbAttributes describing updated columns.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 Object getValue(int dbAttributeIndex)
BatchQuery
getValue
in class BatchQuery
public void add(Map qualifierSnapshot, Map updateSnapshot)
public void add(Map qualifierSnapshot, Map updateSnapshot, ObjectId id)
public int size()
BatchQuery
size
in class BatchQuery
public List getDbAttributes()
BatchQuery
getDbAttributes
in class BatchQuery
public List getUpdatedAttributes()
public List getQualifierAttributes()
public Map getCurrentQualifier()
public ObjectId getObjectId()
getObjectId
in class BatchQuery
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