org.objectweb.jotm
Class XidImpl
- Serializable, Xid
public class XidImpl
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
XidImpl() - build a new Xid with a null BQual
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XidImpl(ByteBuffer XidByteBuffer) - Construct an Xid from a byteBuffer.
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XidImpl(String serverName, int ipAddr) - Build an Xid for a local transaction
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XidImpl(byte[] XidByteArray) - Construct an Xid from a byte array.
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XidImpl(int formatId, byte[] gtrid, byte[] bqual) - build Xid with all its components
(for performance on java serialization)
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XidImpl(int fid, int bqualsz, byte[] tid) - Build an Xid from an otid_t CORBA
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XidImpl(Xid passedXid) - The xid was passed from an external EIS (inflow transaction).
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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.
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boolean | IsThisOneOfOurs(byte[] gtrid_or_bqual)
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boolean | equals(Object obj2) - return true if objects are identical
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byte[] | getBranchQualifier() - Get the Branch Qualifier for that Xid
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int | getFormatId() - Get the format id for that Xid
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byte[] | getGlobalTransactionId() - Get the Global Id for that Xid
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int | hashCode() - return a hashcode value for this object
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static void | setUuids(long passedUuid0, long passedUuid1) - Provide static interface to recover uuid0 & uuid1 after journal
replay.
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String | toString() - String form
default toString() compresses Xid's
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String | toString(boolean Full)
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JOTM_FORMAT_ID
public static final int JOTM_FORMAT_ID
- 47892
XidImpl
public XidImpl()
build a new Xid with a null BQual
XidImpl
public XidImpl(ByteBuffer XidByteBuffer)
Construct an Xid from a byteBuffer. This is necessary for use
during recovery when the Xid has been converted to a String so
that it can be written to a file. The Xid must be reconstructed
from the byte array resulting from toString(true). Note that the
byte array includes ':' characters as separators between
components.
NOTE: Current position of input ByteBuffer is employed!!
XidImpl
public XidImpl(String serverName,
int ipAddr)
Build an Xid for a local transaction
XidImpl
public XidImpl(byte[] XidByteArray)
Construct an Xid from a byte array. This is necessary for use
during recovery when the Xid has been converted to a byte array so
that it can be written to the Howl log. The Xid must be reconstructed
from the byte array resulting from toString(true). Note that the
byte array includes ':' characters as separators between components.
XidImpl
public XidImpl(int formatId,
byte[] gtrid,
byte[] bqual)
build Xid with all its components
(for performance on java serialization)
XidImpl
public XidImpl(int fid,
int bqualsz,
byte[] tid)
Build an Xid from an otid_t CORBA
XidImpl
public XidImpl(Xid passedXid)
The xid was passed from an external EIS (inflow transaction).
Need to store the formatId, gtrid.length, bqual.length, gtrid,
and bqual from the passed xid.
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.
IsThisOneOfOurs
public boolean IsThisOneOfOurs(byte[] gtrid_or_bqual)
- IsThisOneOfOurs in interface Xid
equals
public boolean equals(Object obj2)
return true if objects are identical
getBranchQualifier
public byte[] getBranchQualifier()
Get the Branch Qualifier for that Xid
getFormatId
public int getFormatId()
Get the format id for that Xid
getGlobalTransactionId
public byte[] getGlobalTransactionId()
Get the Global Id for that Xid
hashCode
public int hashCode()
return a hashcode value for this object
setUuids
public static void setUuids(long passedUuid0,
long passedUuid1)
Provide static interface to recover uuid0 & uuid1 after journal
replay.
toString
public String toString()
String form
default toString() compresses Xid's
- toString in interface Xid
toString
public String toString(boolean Full)
- toString in interface Xid