XAXactId (Apache Derby V10.14 Internals)

java.lang.Object
- org.apache.derby.iapi.store.access.GlobalXact
- - org.apache.derby.iapi.store.access.xa.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 class org.apache.derby.iapi.store.access.GlobalXact
  branch_id, format_id, global_id
- Fields inherited from interface javax.transaction.xa.Xid
  MAXBQUALSIZE, MAXGTRIDSIZE

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

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 org.apache.derby.iapi.store.access.GlobalXact
hashCode, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - COLON
```
private static final char COLON
```
    Private Fields of the class
    
    See Also:
    
    Constant Field Values
- 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

Class XAXactId

Field Summary

Fields inherited from class org.apache.derby.iapi.store.access.GlobalXact

Fields inherited from interface javax.transaction.xa.Xid

Constructor Summary

Method Summary

Methods inherited from class org.apache.derby.iapi.store.access.GlobalXact

Methods inherited from class java.lang.Object

Field Detail

COLON

Constructor Detail

XAXactId

XAXactId

XAXactId

Method Detail

copy_init_xid

toHexString

getFormatId

getGlobalTransactionId

getBranchQualifier

equals