Package org.apache.cayenne.query
Class UpdateBatchQuery
java.lang.Object
org.apache.cayenne.query.BatchQuery
org.apache.cayenne.query.UpdateBatchQuery
- All Implemented Interfaces:
Serializable
,Query
public class UpdateBatchQuery extends BatchQuery
Batched UPDATE query.
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description protected boolean
usingOptimisticLocking
Fields inherited from class org.apache.cayenne.query.BatchQuery
dbAttributes, dbEntity, rows
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Constructor Summary
Constructors Constructor Description UpdateBatchQuery(DbEntity dbEntity, List<DbAttribute> qualifierAttributes, List<DbAttribute> updatedAttributes, Collection<String> nullQualifierNames, int batchCapacity)
Creates new UpdateBatchQuery. -
Method Summary
Modifier and Type Method Description void
add(Map<String,Object> qualifierSnapshot, Map<String,Object> updateSnapshot)
Adds a parameter row to the batch.void
add(Map<String,Object> qualifierSnapshot, Map<String,Object> updateSnapshot, ObjectId id)
Adds a parameter row to the batch.List<DbAttribute>
getDbAttributes()
Returns a list of DbAttributes describing batch parameters.List<DbAttribute>
getQualifierAttributes()
List<DbAttribute>
getUpdatedAttributes()
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)
Methods inherited from class org.apache.cayenne.query.BatchQuery
createSQLAction, getDbEntity, getMetaData, getRows, route
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Field Details
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usingOptimisticLocking
protected boolean usingOptimisticLocking
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Constructor Details
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UpdateBatchQuery
public UpdateBatchQuery(DbEntity dbEntity, List<DbAttribute> qualifierAttributes, List<DbAttribute> updatedAttributes, Collection<String> nullQualifierNames, int batchCapacity)Creates new UpdateBatchQuery.- Parameters:
dbEntity
- Table or view to update.qualifierAttributes
- DbAttributes used in the WHERE clause.nullQualifierNames
- DbAttribute names in the WHERE clause that have null values.updatedAttributes
- DbAttributes describing updated columns.batchCapacity
- Estimated size of the batch.
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Method Details
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isNull
Returns true if a given attribute always has a null value in the batch.- Since:
- 1.1
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isUsingOptimisticLocking
public boolean isUsingOptimisticLocking()Returns true if the batch query uses optimistic locking.- Overrides:
isUsingOptimisticLocking
in classBatchQuery
- Since:
- 1.1
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setUsingOptimisticLocking
public void setUsingOptimisticLocking(boolean usingOptimisticLocking)- Since:
- 1.1
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add
Adds a parameter row to the batch. -
add
public void add(Map<String,Object> qualifierSnapshot, Map<String,Object> updateSnapshot, ObjectId id)Adds a parameter row to the batch.- Since:
- 1.2
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getDbAttributes
Description copied from class:BatchQuery
Returns a list of DbAttributes describing batch parameters.- Overrides:
getDbAttributes
in classBatchQuery
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getUpdatedAttributes
- Since:
- 1.1
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getQualifierAttributes
- Since:
- 1.1
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