postgresql-42.2.5.jar
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org.postgresql:postgresql:42.2.5
META-INF
org
postgresql
core
ds
geometric
jdbc
replication
Driver.java
largeobject
PGStatement.java
PGResultSetMetaData.java
gss
util
PGRefCursorResultSet.java
osgi
ssl
PGConnection.java
jdbc3
PGNotification.java
sspi
fastpath
copy
translation
hostchooser
jdbc2
PGProperty.java
xa
PGXADataSource.java
RecoveredXid.java
PGXADataSourceFactory.java
PGXAException.java
PGXAConnection.java
jre8
RecoveredXid.java
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类结构
/* * Copyright (c) 2009, PostgreSQL Global Development Group * See the LICENSE file in the project root for more information. */ package org.postgresql.xa; import org.postgresql.util.
Base64
; import java.util.
Arrays
; import javax.transaction.xa.
Xid
; class
RecoveredXid
implements
Xid
{ int
formatId
; byte[]
globalTransactionId
; byte[]
branchQualifier
; public int
getFormatId
() { return
formatId
; } public byte[]
getGlobalTransactionId
() { return
globalTransactionId
; } public byte[]
getBranchQualifier
() { return
branchQualifier
; } @
Override
public int
hashCode
() { final int
prime
= 31; int
result
= 1;
result
=
prime
*
result
+
Arrays
.
hashCode
(
branchQualifier
);
result
=
prime
*
result
+
formatId
;
result
=
prime
*
result
+
Arrays
.
hashCode
(
globalTransactionId
); return
result
; } public boolean
equals
(
Object
o
) { if (
o
== this) { // optimization for the common case. return true; } if (!(
o
instanceof
Xid
)) { return false; }
Xid
other
= (
Xid
)
o
; if (
other
.
getFormatId
() !=
formatId
) { return false; } if (!
Arrays
.
equals
(
globalTransactionId
,
other
.
getGlobalTransactionId
())) { return false; } if (!
Arrays
.
equals
(
branchQualifier
,
other
.
getBranchQualifier
())) { return false; } return true; } /** * This is for debugging purposes only. */ public
String
toString
() { return
xidToString
(this); } // --- Routines for converting xid to string and back. static
String
xidToString
(
Xid
xid
) { return
xid
.
getFormatId
() + "_" +
Base64
.
encodeBytes
(
xid
.
getGlobalTransactionId
(),
Base64
.
DONT_BREAK_LINES
) + "_" +
Base64
.
encodeBytes
(
xid
.
getBranchQualifier
(),
Base64
.
DONT_BREAK_LINES
); } /** * @return recovered xid, or null if s does not represent a valid xid encoded by the driver. */ static
Xid
stringToXid
(
String
s
) {
RecoveredXid
xid
= new
RecoveredXid
(); int
a
=
s
.
indexOf
("_"); int
b
=
s
.
lastIndexOf
("_"); if (
a
==
b
) { // this also catches the case a == b == -1. return null; } try {
xid
.
formatId
=
Integer
.
parseInt
(
s
.
substring
(0,
a
));
xid
.
globalTransactionId
=
Base64
.
decode
(
s
.
substring
(
a
+ 1,
b
));
xid
.
branchQualifier
=
Base64
.
decode
(
s
.
substring
(
b
+ 1)); if (
xid
.
globalTransactionId
== null ||
xid
.
branchQualifier
== null) { return null; } } catch (
Exception
ex
) { return null; // Doesn't seem to be an xid generated by this driver. } return
xid
; } }
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