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6bb8ec25
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dragonwell8_jdk
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6bb8ec25
编写于
6月 15, 2012
作者:
M
mullan
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0d1f232f
cf82b6e8
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1
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1 changed file
with
67 addition
and
47 deletion
+67
-47
src/share/classes/java/io/SerialCallbackContext.java
src/share/classes/java/io/SerialCallbackContext.java
+67
-47
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src/share/classes/java/io/SerialCallbackContext.java
浏览文件 @
6bb8ec25
/*
* Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
/*
* Copyright (c) 2006, 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package
java.io
;
package
java.io
;
/**
* Context during upcalls from object stream to class-defined
* readObject/writeObject methods.
* Holds object currently being deserialized and descriptor for current class.
*
* This context keeps track of the thread it was constructed on, and allows
* only a single call of defaultReadObject, readFields, defaultWriteObject
* or writeFields which must be invoked on the same thread before the class's
* readObject/writeObject method has returned.
* If not set to the current thread, the getObj method throws NotActiveException.
*/
final
class
SerialCallbackContext
{
private
final
Object
obj
;
private
final
ObjectStreamClass
desc
;
/**
* Thread this context is in use by.
* As this only works in one thread, we do not need to worry about thread-safety.
*/
private
Thread
thread
;
/**
* Context during upcalls from object stream to class-defined
* readObject/writeObject methods.
* Holds object currently being deserialized and descriptor for current class.
*
* This context keeps track of the thread it was constructed on, and allows
* only a single call of defaultReadObject, readFields, defaultWriteObject
* or writeFields which must be invoked on the same thread before the class's
* readObject/writeObject method has returned.
* If not set to the current thread, the getObj method throws NotActiveException.
*/
final
class
SerialCallbackContext
{
private
final
Object
obj
;
private
final
ObjectStreamClass
desc
;
/**
* Thread this context is in use by.
* As this only works in one thread, we do not need to worry about thread-safety.
*/
private
Thread
thread
;
public
SerialCallbackContext
(
Object
obj
,
ObjectStreamClass
desc
)
{
this
.
obj
=
obj
;
this
.
desc
=
desc
;
this
.
thread
=
Thread
.
currentThread
();
}
public
SerialCallbackContext
(
Object
obj
,
ObjectStreamClass
desc
)
{
this
.
obj
=
obj
;
this
.
desc
=
desc
;
this
.
thread
=
Thread
.
currentThread
();
}
public
Object
getObj
()
throws
NotActiveException
{
checkAndSetUsed
();
return
obj
;
}
public
Object
getObj
()
throws
NotActiveException
{
checkAndSetUsed
();
return
obj
;
}
public
ObjectStreamClass
getDesc
()
{
return
desc
;
}
public
ObjectStreamClass
getDesc
()
{
return
desc
;
}
private
void
checkAndSetUsed
()
throws
NotActiveException
{
if
(
thread
!=
Thread
.
currentThread
())
{
throw
new
NotActiveException
(
"not in readObject invocation or fields already read"
);
}
thread
=
null
;
}
private
void
checkAndSetUsed
()
throws
NotActiveException
{
if
(
thread
!=
Thread
.
currentThread
())
{
throw
new
NotActiveException
(
"not in readObject invocation or fields already read"
);
}
thread
=
null
;
}
public
void
setUsed
()
{
thread
=
null
;
}
}
public
void
setUsed
()
{
thread
=
null
;
}
}
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