org.apache.catalina.util
Class CustomObjectInputStream

java.lang.Object
  extended byjava.io.InputStream
      extended byjava.io.ObjectInputStream
          extended byorg.apache.catalina.util.CustomObjectInputStream
All Implemented Interfaces:
java.io.DataInput, java.io.ObjectInput, java.io.ObjectStreamConstants

public final class CustomObjectInputStream
extends java.io.ObjectInputStream

Custom subclass of ObjectInputStream that loads from the class loader for this web application. This allows classes defined only with the web application to be found correctly.

Version:
$Revision: 1.4 $, $Date: 2004/09/02 18:45:17 $
Author:
Craig R. McClanahan, Bip Thelin

Nested Class Summary
 
Nested classes inherited from class java.io.ObjectInputStream
java.io.ObjectInputStream.GetField
 
Field Summary
 
Fields inherited from interface java.io.ObjectStreamConstants
baseWireHandle, PROTOCOL_VERSION_1, PROTOCOL_VERSION_2, SC_BLOCK_DATA, SC_EXTERNALIZABLE, SC_SERIALIZABLE, SC_WRITE_METHOD, STREAM_MAGIC, STREAM_VERSION, SUBCLASS_IMPLEMENTATION_PERMISSION, SUBSTITUTION_PERMISSION, TC_ARRAY, TC_BASE, TC_BLOCKDATA, TC_BLOCKDATALONG, TC_CLASS, TC_CLASSDESC, TC_ENDBLOCKDATA, TC_EXCEPTION, TC_LONGSTRING, TC_MAX, TC_NULL, TC_OBJECT, TC_PROXYCLASSDESC, TC_REFERENCE, TC_RESET, TC_STRING
 
Constructor Summary
CustomObjectInputStream(java.io.InputStream stream, java.lang.ClassLoader classLoader)
          Construct a new instance of CustomObjectInputStream
 
Method Summary
 java.lang.Class resolveClass(java.io.ObjectStreamClass classDesc)
          Load the local class equivalent of the specified stream class description, by using the class loader assigned to this Context.
 
Methods inherited from class java.io.ObjectInputStream
available, close, defaultReadObject, enableResolveObject, read, read, readBoolean, readByte, readChar, readClassDescriptor, readDouble, readFields, readFloat, readFully, readFully, readInt, readLine, readLong, readObject, readObjectOverride, readShort, readStreamHeader, readUnshared, readUnsignedByte, readUnsignedShort, readUTF, registerValidation, resolveObject, resolveProxyClass, skipBytes
 
Methods inherited from class java.io.InputStream
mark, markSupported, read, reset, skip
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface java.io.ObjectInput
read, skip
 

Constructor Detail

CustomObjectInputStream

public CustomObjectInputStream(java.io.InputStream stream,
                               java.lang.ClassLoader classLoader)
                        throws java.io.IOException
Construct a new instance of CustomObjectInputStream

Parameters:
stream - The input stream we will read from
classLoader - The class loader used to instantiate objects
Throws:
java.io.IOException - if an input/output error occurs
Method Detail

resolveClass

public java.lang.Class resolveClass(java.io.ObjectStreamClass classDesc)
                             throws java.lang.ClassNotFoundException,
                                    java.io.IOException
Load the local class equivalent of the specified stream class description, by using the class loader assigned to this Context.

Parameters:
classDesc - Class description from the input stream
Throws:
java.lang.ClassNotFoundException - if this class cannot be found
java.io.IOException - if an input/output error occurs


Copyright 2000-2002 Apache Software Foundation. All Rights Reserved.