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Java > Open Source Codes > com > sun > org > apache > xerces > internal > impl > xs > identity > KeyRef


1 /*
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25  * if and wherever such third-party acknowledgments normally appear.
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27  * 4. The names "Xerces" and "Apache Software Foundation" must
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57
58 package com.sun.org.apache.xerces.internal.impl.xs.identity;
59
60 import com.sun.org.apache.xerces.internal.xs.XSIDCDefinition;
61
62 /**
63  * Schema key reference identity constraint.
64  *
65  * @author Andy Clark, IBM
66  * @version $Id: KeyRef.java,v 1.5 2003/11/11 20:14:59 sandygao Exp $
67  */
68 public class KeyRef
69     extends IdentityConstraint {
70
71     //
72 // Data
73 //
74
75     /** The key (or unique) being referred to. */
76     protected UniqueOrKey fKey;
77
78     //
79 // Constructors
80 //
81
82     /** Constructs a keyref with the specified name. */
83     public KeyRef(String JavaDoc namespace, String JavaDoc identityConstraintName,
84                   String JavaDoc elemName, UniqueOrKey key) {
85         super(namespace, identityConstraintName, elemName);
86         fKey = key;
87         type = IC_KEYREF;
88     } // <init>(String,String,String)
89
90     //
91 // Public methods
92 //
93
94     /** Returns the key being referred to. */
95     public UniqueOrKey getKey() {
96         return fKey;
97     } // getKey(): int
98
99     /**
100      * {referenced key} Required if {identity-constraint category} is keyref,
101      * forbidden otherwise. An identity-constraint definition with
102      * {identity-constraint category} equal to key or unique.
103      */
104     public XSIDCDefinition getRefKey() {
105         return fKey;
106     }
107
108 } // class KeyRef
109
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