Package org.apache.openjpa.kernel

Class DelegatingSeq

java.lang.Object
org.apache.openjpa.kernel.DelegatingSeq
All Implemented Interfaces:
Seq, Closeable
public class DelegatingSeq extends Object implements Seq
Delegating sequence that can also perform exception translation for use in facades.
Author:
Abe White

  • Constructor Details

    • DelegatingSeq

      public DelegatingSeq(Seq seq)
      Constructor; supply delegate.

    • DelegatingSeq

      public DelegatingSeq(Seq seq, RuntimeExceptionTranslator trans)
      Constructor; supply delegate and exception translator.

  • Method Details

    • getDelegate

      public Seq getDelegate()
      Return the direct delegate.

    • getInnermostDelegate

      public Seq getInnermostDelegate()
      Return the native delegate.

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public boolean equals(Object other)
      Overrides:
      equals in class Object

    • translate

      protected RuntimeException translate(RuntimeException re)
      Translate the OpenJPA exception.

    • setType

      public void setType(int type)
      Description copied from interface: Seq
      Set the type of sequence.
      Specified by:
      setType in interface Seq

    • next

      public Object next(StoreContext ctx, ClassMetaData meta)
      Description copied from interface: Seq
      Return the next value in the sequence.
      Specified by:
      next in interface Seq
      Parameters:
      ctx - the current context
      meta - if this is a datastore identity sequence, the persistent class the identity value is for; else null

    • current

      public Object current(StoreContext ctx, ClassMetaData meta)
      Description copied from interface: Seq
      Return the current value of the sequence, or null if not available.
      Specified by:
      current in interface Seq
      Parameters:
      ctx - the current context
      meta - if this is a datastore identity sequence, the persistent class the identity value is for; else null

    • allocate

      public void allocate(int additional, StoreContext ctx, ClassMetaData meta)
      Description copied from interface: Seq
      Allocate additional values efficiently.
      Specified by:
      allocate in interface Seq
      ctx - the current context
      meta - if this is a datastore identity sequence, the persistent class the identity value is for; else null

    • close

      public void close()
      Description copied from interface: Seq
      Free resources used by this sequence.
      Specified by:
      close in interface Closeable
      Specified by:
      close in interface Seq