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134 lines
3.6 KiB
134 lines
3.6 KiB
/*
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* Copyright (c) 1999, 2001, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.naming.directory;
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/**
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* This class represents a modification item.
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* It consists of a modification code and an attribute on which to operate.
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*<p>
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* A ModificationItem instance is not synchronized against concurrent
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* multithreaded access. Multiple threads trying to access and modify
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* a single ModificationItem instance should lock the object.
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*
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* @author Rosanna Lee
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* @author Scott Seligman
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* @since 1.3
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*/
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/*
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*<p>
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* The serialized form of a ModificationItem object consists of the
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* modification op (and int) and the corresponding Attribute.
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*/
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public class ModificationItem implements java.io.Serializable {
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/**
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* Contains an integer identify the modification
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* to be performed.
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* @serial
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*/
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private int mod_op;
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/**
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* Contains the attribute identifying
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* the attribute and/or its value to be applied for the modification.
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* @serial
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*/
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private Attribute attr;
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/**
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* Creates a new instance of ModificationItem.
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* @param mod_op Modification to apply. It must be one of:
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* DirContext.ADD_ATTRIBUTE
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* DirContext.REPLACE_ATTRIBUTE
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* DirContext.REMOVE_ATTRIBUTE
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* @param attr The non-null attribute to use for modification.
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* @exception IllegalArgumentException If attr is null, or if mod_op is
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* not one of the ones specified above.
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*/
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public ModificationItem(int mod_op, Attribute attr) {
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switch (mod_op) {
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case DirContext.ADD_ATTRIBUTE:
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case DirContext.REPLACE_ATTRIBUTE:
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case DirContext.REMOVE_ATTRIBUTE:
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if (attr == null)
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throw new IllegalArgumentException("Must specify non-null attribute for modification");
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this.mod_op = mod_op;
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this.attr = attr;
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break;
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default:
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throw new IllegalArgumentException("Invalid modification code " + mod_op);
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}
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}
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/**
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* Retrieves the modification code of this modification item.
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* @return The modification code. It is one of:
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* DirContext.ADD_ATTRIBUTE
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* DirContext.REPLACE_ATTRIBUTE
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* DirContext.REMOVE_ATTRIBUTE
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*/
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public int getModificationOp() {
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return mod_op;
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}
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/**
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* Retrieves the attribute associated with this modification item.
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* @return The non-null attribute to use for the modification.
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*/
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public Attribute getAttribute() {
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return attr;
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}
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/**
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* Generates the string representation of this modification item,
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* which consists of the modification operation and its related attribute.
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* The string representation is meant for debugging and not to be
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* interpreted programmatically.
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*
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* @return The non-null string representation of this modification item.
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*/
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public String toString() {
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switch (mod_op) {
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case DirContext.ADD_ATTRIBUTE:
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return ("Add attribute: " + attr.toString());
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case DirContext.REPLACE_ATTRIBUTE:
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return ("Replace attribute: " + attr.toString());
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case DirContext.REMOVE_ATTRIBUTE:
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return ("Remove attribute: " + attr.toString());
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}
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return ""; // should never happen
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}
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/**
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* Use serialVersionUID from JNDI 1.1.1 for interoperability
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*/
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private static final long serialVersionUID = 7573258562534746850L;
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}
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