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java.lang.Objectorg.apache.cayenne.query.BatchQuery
org.apache.cayenne.query.UpdateBatchQuery
public class UpdateBatchQuery
Batched UPDATE query.
Field Summary | |
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protected List<ObjectId> |
objectIds
|
protected List<Map> |
qualifierSnapshots
|
protected List<Map> |
updateSnapshots
|
protected boolean |
usingOptimisticLocking
|
Fields inherited from class org.apache.cayenne.query.BatchQuery |
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batchIndex, dbEntity, name |
Constructor Summary | |
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UpdateBatchQuery(DbEntity dbEntity,
List<DbAttribute> qualifierAttributes,
List<DbAttribute> updatedAttribute,
Collection<String> 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<DbAttribute> |
getDbAttributes()
Returns a list of DbAttributes describing batch parameters. |
ObjectId |
getObjectId()
Returns an ObjectId associated with the current batch iteration. |
List<DbAttribute> |
getQualifierAttributes()
|
List<DbAttribute> |
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<ObjectId> objectIds
protected List<Map> qualifierSnapshots
protected List<Map> updateSnapshots
protected boolean usingOptimisticLocking
Constructor Detail |
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public UpdateBatchQuery(DbEntity dbEntity, List<DbAttribute> qualifierAttributes, List<DbAttribute> updatedAttribute, Collection<String> 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<DbAttribute> getDbAttributes()
BatchQuery
getDbAttributes
in class BatchQuery
public List<DbAttribute> getUpdatedAttributes()
public List<DbAttribute> getQualifierAttributes()
public Map getCurrentQualifier()
public ObjectId getObjectId()
getObjectId
in class BatchQuery
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