Package org.apache.derby.iapi.store.access.xa

Class XAXactId

  • All Implemented Interfaces:
    javax.transaction.xa.Xid
    public class XAXactId
extends GlobalXact
implements javax.transaction.xa.Xid
    The XAXactId class is a specific implementation of the JTA Xid interface. It is only used by the TransactionTable.restore() interface to return an array of Xid's back to the caller, as part of serving the XAresource.restore() interface.

    It is NOT the object that is stored in the log. One reason for this is that the Formattable and Xid interface's define two different return values for the getFormatId() interface.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static char COLON
      Private Fields of the class

      • Fields inherited from interface javax.transaction.xa.Xid

        MAXBQUALSIZE, MAXGTRIDSIZE

    • Constructor Summary

      Constructors 
      Constructor Description
      XAXactId​(int format_id, byte[] global_id, byte[] branch_id)
      Construct from given pieces of an Xid.
      XAXactId​(java.lang.String xactIdString)  
      XAXactId​(javax.transaction.xa.Xid xid)
      Construct an Xid using an external Xid.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      private void copy_init_xid​(int format_id, byte[] global_id, byte[] branch_id)
      initialize by making array copies of appropriate fields.
      boolean equals​(java.lang.Object other)  
      byte[] getBranchQualifier()
      Obtain the transaction branch qualifier part of the Xid in a byte array.
      int getFormatId()
      Obtain the format id part of the Xid.
      byte[] getGlobalTransactionId()
      Obtain the global transaction identifier part of XID as an array of bytes.
      java.lang.String toHexString()  

      • Methods inherited from class java.lang.Object

        clone, finalize, getClass, notify, notifyAll, wait, wait, wait

    • Constructor Detail

      • XAXactId

        public XAXactId​(int format_id,
                byte[] global_id,
                byte[] branch_id)
        Construct from given pieces of an Xid. Makes copies of arrays.

      • XAXactId

        public XAXactId​(javax.transaction.xa.Xid xid)
         throws javax.transaction.xa.XAException
        Construct an Xid using an external Xid.

        Throws:
        javax.transaction.xa.XAException - invalid external xid

      • XAXactId

        public XAXactId​(java.lang.String xactIdString)

    • Method Detail

      • copy_init_xid

        private void copy_init_xid​(int format_id,
                           byte[] global_id,
                           byte[] branch_id)
        initialize by making array copies of appropriate fields.

      • toHexString

        public java.lang.String toHexString()

      • getFormatId

        public int getFormatId()
        Obtain the format id part of the Xid.

        Specified by:
        getFormatId in interface javax.transaction.xa.Xid
        Returns:
        Format identifier. O means the OSI CCR format.

      • getGlobalTransactionId

        public byte[] getGlobalTransactionId()
        Obtain the global transaction identifier part of XID as an array of bytes.

        Specified by:
        getGlobalTransactionId in interface javax.transaction.xa.Xid
        Returns:
        A byte array containing the global transaction identifier.

      • getBranchQualifier

        public byte[] getBranchQualifier()
        Obtain the transaction branch qualifier part of the Xid in a byte array.

        Specified by:
        getBranchQualifier in interface javax.transaction.xa.Xid
        Returns:
        A byte array containing the branch qualifier of the transaction.

      • equals

        public boolean equals​(java.lang.Object other)
        Overrides:
        equals in class GlobalXact