org.apache.activemq.apollo.broker

Class XidImpl

java.lang.Object

org.apache.activemq.apollo.broker.XidImpl

All Implemented Interfaces:

Serializable, Cloneable, Xid

public class XidImpl
extends Object
implements Xid, Cloneable, Serializable

An implementation of JTA transaction identifier (javax.transaction.xa.Xid).

See Also:

Serialized Form

Field Summary

Fields inherited from interface javax.transaction.xa.Xid

MAXBQUALSIZE, MAXGTRIDSIZE

Constructor Summary

Constructors

Constructor and Description
XidImpl() Constructs a new null XID.
XidImpl(int formatID, org.fusesource.hawtbuf.Buffer globalTransactionId, org.fusesource.hawtbuf.Buffer branchQualifier)
XidImpl(int formatID, byte[] globalTxnID, byte[] branchID)
XidImpl(String globalTxnId, String branchId)
XidImpl(Xid from) Initialize an XID using another XID as the source of data.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object o) Determine whether or not two objects of this type are equal.
byte[]	getBranchQualifier() Returns the branch qualifier for this XID.
int	getFormatId() Obtain the format identifier part of the XID.
byte[]	getGlobalTransactionId() Returns the global transaction identifier for this XID.
int	getMemorySize()
int	hashCode() Compute the hash code.
void	readbody(DataInput in) read xid from an Array and set each fields.
static org.fusesource.hawtbuf.Buffer	toBuffer(Xid xid)
String	toString() Return a string representing this XID.
void	writebody(DataOutput out) Writes this XidImpl's data to the DataOutput destination

Methods inherited from class java.lang.Object

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

Constructor Detail

XidImpl

public XidImpl()

Constructs a new null XID.

After construction the data within the XID should be initialized.

XidImpl

public XidImpl(int formatID,
       byte[] globalTxnID,
       byte[] branchID)

XidImpl

public XidImpl(int formatID,
       org.fusesource.hawtbuf.Buffer globalTransactionId,
       org.fusesource.hawtbuf.Buffer branchQualifier)

XidImpl

public XidImpl(Xid from)

Initialize an XID using another XID as the source of data.

Parameters:

from - the XID to initialize this XID from

XidImpl

public XidImpl(String globalTxnId,
       String branchId)

Method Detail

equals

public boolean equals(Object o)

Determine whether or not two objects of this type are equal.

Overrides:

equals in class Object

Parameters:

o - the other XID object to be compared with this XID.

Returns:

Returns true of the supplied object represents the same global transaction as this, otherwise returns false.

hashCode

public int hashCode()

Compute the hash code.

Overrides:

hashCode in class Object

Returns:

the computed hashcode

toString

public String toString()

Return a string representing this XID.

This is normally used to display the XID when debugging.

Overrides:

toString in class Object

Returns:

the string representation of this XID

getFormatId

public int getFormatId()

Obtain the format identifier part of the XID.

Specified by:

getFormatId in interface Xid

Returns:

Format identifier. -1 indicates a null XID

getGlobalTransactionId

public byte[] getGlobalTransactionId()

Returns the global transaction identifier for this XID.

Specified by:

getGlobalTransactionId in interface Xid

Returns:

the global transaction identifier

getBranchQualifier

public byte[] getBranchQualifier()

Returns the branch qualifier for this XID.

Specified by:

getBranchQualifier in interface Xid

Returns:

the branch qualifier

getMemorySize

public int getMemorySize()

writebody

public void writebody(DataOutput out)
               throws IOException

Writes this XidImpl's data to the DataOutput destination

Parameters:

out - The DataOutput destination

Throws:

IOException

readbody

public void readbody(DataInput in)
              throws IOException

read xid from an Array and set each fields.

Parameters:

in - the data input array

Throws:

IOException

toBuffer

public static org.fusesource.hawtbuf.Buffer toBuffer(Xid xid)

Parameters:

xid -

Returns: