org.jboss.tm
Class XidImpl

java.lang.Object
  org.jboss.tm.XidImpl

All Implemented Interfaces:

java.io.Serializable, Xid (src)

public class XidImpl

extends java.lang.Object

implements Xid (src) , java.io.Serializable

This object encapsulates the ID of a transaction. This implementation is immutable and always serializable at runtime.

See Also:

TransactionImpl (src) , Serialized Form

JBOSS_FORMAT_ID

public static final int JBOSS_FORMAT_ID

See Also:

Constant Field Values (src)

XidImpl

public XidImpl(int formatId,
               byte[] globalId,
               byte[] branchId,
               int hash,
               long localId)

Create a new instance.

XidImpl

public XidImpl(XidImpl (src)  xidImpl,
               byte[] branchId)

Create a new branch of an existing global transaction ID.

Parameters:

xidImpl - The transaction ID to create a new branch of.

branchId - The ID of the new branch.

setTrulyGlobalIdsEnabled

public static void setTrulyGlobalIdsEnabled(boolean newValue)

Setter for class variable trulyGlobalIdsEnabled.

getTrulyGlobalIdsEnabled

public static boolean getTrulyGlobalIdsEnabled()

Getter for class variable trulyGlobalIdsEnabled.

getGlobalTransactionId

public byte[] getGlobalTransactionId()

Return the global transaction id of this transaction.

Specified by:

getGlobalTransactionId in interface Xid (src)

Returns:

A byte array that together with the format ID defines the globally unique ID of this transaction.

getBranchQualifier

public byte[] getBranchQualifier()

Return the branch qualifier of this transaction.

Specified by:

getBranchQualifier in interface Xid (src)

Returns:

A byte array that identifies the branch of this transaction.

getFormatId

public int getFormatId()

Return the format identifier of this transaction. The format identifier augments the global id and specifies how the global id and branch qualifier should be interpreted.

Specified by:

getFormatId in interface Xid (src)

Returns:

An integer denoting the family of this transaction, and telling how the two other parts can be interpreted.

equals

public boolean equals(java.lang.Object obj)

Compare for equality. Instances are considered equal if they are both instances of XidImpl, and if they have the same format id, the same global transaction id and the same transaction branch qualifier.

hashCode

public int hashCode()

toString

public java.lang.String toString()

getLocalIdValue

public long getLocalIdValue()

Return the local id that identifies this transaction within the JBoss server.

getLocalId

public LocalId (src)  getLocalId()

Return a LocalId instance that identifies this transaction within the JBoss server.

getTrulyGlobalId

public GlobalId (src)  getTrulyGlobalId()

Return a GlobalId instance that identifies this transaction in a distributed environment.

sameTransaction

public boolean sameTransaction(XidImpl (src)  other)

Compare for same transaction. Instances represent the same transaction if they have the same format id and global transaction id.