Class PersistableIdMapping
java.lang.Object
org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping
org.datanucleus.store.rdbms.mapping.java.MultiMapping
org.datanucleus.store.rdbms.mapping.java.PersistableMapping
org.datanucleus.store.rdbms.mapping.java.PersistableIdMapping
- All Implemented Interfaces:
MappingCallbacks
Maps to identity objects of persistable values.
Used within JDOQL queries on JDOHelper.getObjectId expressions, as well as on SQL statement results when selecting a PersistableMapping to convert to an identity.
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Field Summary
Fields inherited from class org.datanucleus.store.rdbms.mapping.java.PersistableMapping
cmd
Fields inherited from class org.datanucleus.store.rdbms.mapping.java.MultiMapping
javaTypeMappings, numberOfColumnMappings
Fields inherited from class org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping
absFieldNumber, columnMappings, mmd, referenceMapping, roleForMember, storeMgr, table, type
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Constructor Summary
ConstructorsConstructorDescriptionPersistableIdMapping
(PersistableMapping pcMapping) Constructor used to generate a mapping representing only the identity of the persistable object. -
Method Summary
Modifier and TypeMethodDescriptionReturns an identity for a persistable class.void
setObject
(org.datanucleus.ExecutionContext ec, PreparedStatement ps, int[] param, Object value) Method to set the object based on an input identity.Methods inherited from class org.datanucleus.store.rdbms.mapping.java.PersistableMapping
getClassMetaData, getJavaType, getValueForColumnMapping, initialize, initialize, postInsert, postUpdate, preDelete, prepareColumnMapping, setObject
Methods inherited from class org.datanucleus.store.rdbms.mapping.java.MultiMapping
addJavaTypeMapping, getColumnMapping, getColumnMappings, getJavaTypeMapping, getNumberOfColumnMappings
Methods inherited from class org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping
addColumnMapping, equals, failureMessage, getAbsoluteFieldNumber, getBoolean, getByte, getChar, getColumnMetaDataForMember, getDouble, getFloat, getInt, getJavaTypeForColumnMapping, getLong, getMemberMetaData, getObject, getReferenceMapping, getRoleForMember, getShort, getStoreManager, getString, getTable, getType, hashCode, hasSimpleDatastoreRepresentation, includeInFetchStatement, includeInInsertStatement, includeInUpdateStatement, isNullable, isSerialised, performSetPostProcessing, representableAsStringLiteralInStatement, requiresSetPostProcessing, setAbsFieldNumber, setBoolean, setByte, setChar, setDouble, setFloat, setInt, setLong, setMemberMetaData, setReferenceMapping, setRoleForMember, setShort, setString, setTable
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.datanucleus.store.rdbms.mapping.MappingCallbacks
postFetch
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Constructor Details
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PersistableIdMapping
Constructor used to generate a mapping representing only the identity of the persistable object.- Parameters:
pcMapping
- The persistable mapping to base it on
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Method Details
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getObject
Returns an identity for a persistable class. Processes a FK field and finds the object that it relates to, then returns the identity.- Overrides:
getObject
in classPersistableMapping
- Parameters:
ec
- The ExecutionContextrs
- The ResultSetparam
- Array of parameter ids in the ResultSet to retrieve- Returns:
- The identity of the Persistence Capable object
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setObject
public void setObject(org.datanucleus.ExecutionContext ec, PreparedStatement ps, int[] param, Object value) Method to set the object based on an input identity.- Overrides:
setObject
in classPersistableMapping
- Parameters:
ec
- ExecutionContextps
- PreparedStatementparam
- Parameter positions to populate when setting the valuevalue
- The identity
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