57 lines
1.2 KiB
Java
57 lines
1.2 KiB
Java
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/*
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* ObjectLink.java 2004-11-14
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*
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* Dirk Ansorge, FernUniversitaet Hagen
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*
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*/
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package twodsack.util.graph;
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/**
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* This class implements a pointer to an <code>Object</code> and the ability to give that object a number.
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* It is needed as a support structure for {@link MeshGenerator} and {@link Graph}. There, it is used in
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* hash tables. For this reason, it implements the methods <code>hashCode</code> and <code>equals</code>.
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*/
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class ObjectLink {
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/*
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* fields
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*/
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protected Object linkedObject;
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protected int number;
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/*
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* constructors
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*/
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/**
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* The default constructor. Fills in default values.
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*/
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protected ObjectLink() {
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this.linkedObject = null;
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this.number = -1;
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}
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/**
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* Constructs a <code>ObjectLink</code> with passed values.
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*
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* @param object the object to be linked to
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*/
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protected ObjectLink(Object object) {
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this.linkedObject = object;
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this.number = -1;
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}
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/*
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* methods
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*/
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/**
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* Sets the number of <code>this</code> to <code>num</code>.
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*
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* @param num the number
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*/
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protected void setNumber(int num) {
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this.number = num;
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}//end method setNumber
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}//end class ObjectLink
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