Package org.apache.openjpa.jdbc.meta.strats

Class EmbeddedClassStrategy

    • Constructor Detail

      • EmbeddedClassStrategy

        public EmbeddedClassStrategy()

    • Method Detail

      • map

        public void map​(boolean adapt)
        Description copied from interface: Strategy
        Map the owning mapping using this strategy.
        Specified by:
        map in interface Strategy
        Overrides:
        map in 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 java.lang.Object getNullIndicatorValue​(OpenJPAStateManager sm)
        Return the proper synthetic null indicator value for the given instance.

      • indicatesNull

        public boolean indicatesNull​(java.lang.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:
        isPrimaryKeyObjectId in interface ClassStrategy
        Overrides:
        isPrimaryKeyObjectId in 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