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/*
* Nesting.java
*
* Created on March 8, 2000
*/
package com.sun.jdo.spi.persistence.support.sqlstore.query.util.scope;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* This class is used to handle the hidden definition
* of an identifier. If an identifier is declared its old
* definition is hidden and stored in the actual nesting.
*
* @author Michael Bouschen
* @version 0.1
*/
public class Nesting
{
/**
* List of idents with hidden definitions in the actual scope.
*/
protected List idents;
/**
* List of hidden definitions; each definition in this list
* corresponds to an identifier of the list idents.
*/
protected List hiddenDefs;
/**
* Creates an new nesting.
*/
public Nesting()
{
this.idents = new ArrayList();
this.hiddenDefs = new ArrayList();
}
/**
* Adds a hidden definition to this.
* @param ident name of the identifier
* @param hidden the hidden definition of ident
*/
public void add(String ident, Definition hidden)
{
idents.add(ident);
hiddenDefs.add(hidden);
}
/**
* Returns an enumeration of idents with hidden definitions.
*/
public Iterator getIdents()
{
return idents.iterator();
}
/**
* Returns an enumeration of hidden definitions.
*/
public Iterator getHiddenDefinitions()
{
return hiddenDefs.iterator();
}
}