Module java.transaction.xa

Package javax.transaction.xa

Interface Xid

public interface Xid

The Xid interface is a Java mapping of the X/Open transaction identifier XID structure. This interface specifies three accessor methods to retrieve a global transaction format ID, global transaction ID, and branch qualifier. The Xid interface is used by the transaction manager and the resource managers. This interface is not visible to the application programs.

Since:

1.4

Field Summary

Fields

Modifier and Type	Field	Description
static int	MAXBQUALSIZE	Maximum number of bytes returned by getBranchQualifier().
static int	MAXGTRIDSIZE	Maximum number of bytes returned by getGlobalTransactionId().

Method Summary

Modifier and Type	Method	Description
byte[]	getBranchQualifier()	Obtain the transaction branch identifier part of XID as an array of bytes.
int	getFormatId()	Obtain the format identifier part of the XID.
byte[]	getGlobalTransactionId()	Obtain the global transaction identifier part of XID as an array of bytes.

Field Details

MAXGTRIDSIZE

static final int MAXGTRIDSIZE

Maximum number of bytes returned by getGlobalTransactionId().

See Also:

Constant Field Values

MAXBQUALSIZE

static final int MAXBQUALSIZE

Maximum number of bytes returned by getBranchQualifier().

See Also:

Constant Field Values

Method Details

getFormatId

int getFormatId()

Obtain the format identifier part of the XID.

Returns:

Format identifier. O means the OSI CCR format.

getGlobalTransactionId

byte[] getGlobalTransactionId()

Obtain the global transaction identifier part of XID as an array of bytes.

Returns:

Global transaction identifier.

getBranchQualifier

byte[] getBranchQualifier()

Obtain the transaction branch identifier part of XID as an array of bytes.

Returns:

Global transaction identifier.