org.objectweb.jotm
Class XidImpl

java.lang.Object
  extended byorg.objectweb.jotm.XidImpl
All Implemented Interfaces:
Serializable, Xid

public class XidImpl
extends Object
implements Xid, Serializable

Xid implementation for JTA XID has the following format as defined by X/Open Specification: XID long formatID format identifier long gtrid_length value 1-64 long bqual_length value 1-64 byte data [XIDDATASIZE] where XIDDATASIZE = 128 The data field comprises at most two contiguous components: a global transaction identifier (gtrid) and a branch qualifier (bqual) which are defined as: byte gtrid [1-64] global transaction identfier byte bqual [1-64] branch qualifier

See Also:
Serialized Form

Field Summary
static int JOTM_FORMAT_ID
           
 
Fields inherited from interface javax.transaction.xa.Xid
MAXBQUALSIZE, MAXGTRIDSIZE
 
Constructor Summary
XidImpl()
          build a new Xid with a null BQual
XidImpl(int formatId, byte[] gtrid, byte[] bqual)
          build Xid with all its components (for performance on java serialization)
XidImpl(int fid, int bqualsz, byte[] tid)
          Build an Xid from an otid_t CORBA
XidImpl(String serverName, int ipAddr)
          Build an Xid for a local transaction
XidImpl(Xid oldXid, int index)
          build a new Xid from an existing Xid, preserving the gtrid, and using the 'index' as part of the unique but recognizable BQual.
 
Method Summary
 boolean equals(Object obj2)
          return true if objects are identical
 byte[] getBranchQualifier()
          Get the Branch Qualifier for that Xid
 int getFormatId()
          Get the format id for that Xid
 byte[] getGlobalTransactionId()
          Get the Global Id for that Xid
 int hashCode()
          return a hashcode value for this object
 boolean IsThisOneOfOurs(byte[] gtrid_or_bqual)
           
 String toString()
          String form
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

JOTM_FORMAT_ID

public static final int JOTM_FORMAT_ID
See Also:
Constant Field Values
Constructor Detail

XidImpl

public XidImpl(String serverName,
               int ipAddr)
Build an Xid for a local transaction


XidImpl

public XidImpl(int fid,
               int bqualsz,
               byte[] tid)
Build an Xid from an otid_t CORBA


XidImpl

public XidImpl(int formatId,
               byte[] gtrid,
               byte[] bqual)
build Xid with all its components (for performance on java serialization)


XidImpl

public XidImpl()
build a new Xid with a null BQual


XidImpl

public XidImpl(Xid oldXid,
               int index)
build a new Xid from an existing Xid, preserving the gtrid, and using the 'index' as part of the unique but recognizable BQual. The important thing is that this method must return the same result on successive calls given the same input.

Method Detail

getFormatId

public int getFormatId()
Get the format id for that Xid

Specified by:
getFormatId in interface Xid

getGlobalTransactionId

public byte[] getGlobalTransactionId()
Get the Global Id for that Xid

Specified by:
getGlobalTransactionId in interface Xid

getBranchQualifier

public byte[] getBranchQualifier()
Get the Branch Qualifier for that Xid

Specified by:
getBranchQualifier in interface Xid

toString

public String toString()
String form


IsThisOneOfOurs

public boolean IsThisOneOfOurs(byte[] gtrid_or_bqual)

equals

public boolean equals(Object obj2)
return true if objects are identical


hashCode

public int hashCode()
return a hashcode value for this object