org.apache.openjpa.jdbc.meta.strats
Class EmbeddedClassStrategy
java.lang.Object
   org.apache.openjpa.jdbc.meta.strats.AbstractStrategy
org.apache.openjpa.jdbc.meta.strats.AbstractStrategy
       org.apache.openjpa.jdbc.meta.strats.AbstractClassStrategy
org.apache.openjpa.jdbc.meta.strats.AbstractClassStrategy
           org.apache.openjpa.jdbc.meta.strats.EmbeddedClassStrategy
org.apache.openjpa.jdbc.meta.strats.EmbeddedClassStrategy
- All Implemented Interfaces: 
- Serializable, ClassStrategy, Strategy
- public class EmbeddedClassStrategy 
- extends AbstractClassStrategy
Class mapping for embedded objects.
- Author:
- Abe White
- See Also:
- Serialized Form
 
 
 
| Method Summary | 
|  Object | getNullIndicatorValue(OpenJPAStateManager sm)Return the proper synthetic null indicator value for the given instance.
 | 
|  boolean | indicatesNull(Object val)Return whether the given null indicator value means the object is null.
 | 
|  boolean | isPrimaryKeyObjectId(boolean hasAll)Return true if the this class' primary key columns correspond to the
 base class' primary key columns used to construct oid values.
 | 
|  void | map(boolean adapt)Map the owning mapping using this strategy.
 | 
 
 
| Methods inherited from class org.apache.openjpa.jdbc.meta.strats.AbstractStrategy | 
| customDelete, customInsert, customUpdate, delete, getAlias, initialize, insert, isCustomDelete, isCustomInsert, isCustomUpdate, update | 
 
| Methods inherited from class java.lang.Object | 
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
 
| Methods inherited from interface org.apache.openjpa.jdbc.meta.Strategy | 
| customDelete, customInsert, customUpdate, delete, getAlias, initialize, insert, isCustomDelete, isCustomInsert, isCustomUpdate, update | 
 
EmbeddedClassStrategy
public EmbeddedClassStrategy()
map
public void map(boolean adapt)
- Description copied from interface: Strategy
- Map the owning mapping using this strategy.
 
- 
- Specified by:
- mapin interface- Strategy
- Overrides:
- mapin class- AbstractStrategy
 
- 
- Parameters:
- adapt- if true, use the owning mapping's raw mapping info
 to set its ORM data; if false, ORM data will already be set
 
getNullIndicatorValue
public Object getNullIndicatorValue(OpenJPAStateManager sm)
- Return the proper synthetic null indicator value for the given instance.
 
- 
 
indicatesNull
public boolean indicatesNull(Object val)
- Return whether the given null indicator value means the object is null.
 
- 
 
isPrimaryKeyObjectId
public boolean isPrimaryKeyObjectId(boolean hasAll)
- Description copied from interface: ClassStrategy
- Return true if the this class' primary key columns correspond to the
 base class' primary key columns used to construct oid values. Base
 classes always return true. Classes that join to the base class table,
 though, may not always join using the same columns the base class
 uses for oid values, or may not use all the columns. When performing a
 select, we will join down to the most-derived class that is identified
 by oid values. We cannot use non-primary key field values for joining
 during selects, because the field values to join on might be the ones
 we're trying to select! Similarly, we can only reconstruct oid values
 for selected objects using classes whose primary keys store oid values.
 
- 
- Specified by:
- isPrimaryKeyObjectIdin interface- ClassStrategy
- Overrides:
- isPrimaryKeyObjectIdin class- AbstractClassStrategy
 
- 
- Parameters:
- hasAll- if true, there must be a primary key column for every
 base class primary key column; if false the primary key
 must only match a subset of the base class primary key columns
 
Copyright © 2006-2009 Apache Software Foundation. All Rights Reserved.