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/*
 * Copyright (c) 1997, 2022 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package com.sun.xml.xsom.impl;

import com.sun.xml.xsom.ForeignAttributes;
import com.sun.xml.xsom.XSContentType;
import com.sun.xml.xsom.XSParticle;
import com.sun.xml.xsom.XSSimpleType;
import com.sun.xml.xsom.XSTerm;
import com.sun.xml.xsom.impl.parser.DelayedRef;
import com.sun.xml.xsom.impl.parser.SchemaDocumentImpl;
import com.sun.xml.xsom.visitor.XSContentTypeFunction;
import com.sun.xml.xsom.visitor.XSContentTypeVisitor;
import com.sun.xml.xsom.visitor.XSFunction;
import com.sun.xml.xsom.visitor.XSVisitor;
import java.math.BigInteger;
import org.xml.sax.Locator;

import java.util.List;

public class ParticleImpl extends ComponentImpl implements XSParticle, ContentTypeImpl
{
    public ParticleImpl( SchemaDocumentImpl owner, AnnotationImpl _ann,
        Ref.Term _term, Locator _loc, BigInteger _maxOccurs, BigInteger _minOccurs ) {

        super(owner,_ann,_loc,null);
        this.term = _term;
        this.maxOccurs = _maxOccurs;
        this.minOccurs = _minOccurs;
    }
    public ParticleImpl( SchemaDocumentImpl owner, AnnotationImpl _ann,
        Ref.Term _term, Locator _loc, int _maxOccurs, int _minOccurs ) {
            
        super(owner,_ann,_loc,null);
        this.term = _term;
        this.maxOccurs = BigInteger.valueOf(_maxOccurs);
        this.minOccurs = BigInteger.valueOf(_minOccurs);
    }
    public ParticleImpl( SchemaDocumentImpl owner, AnnotationImpl _ann, Ref.Term _term, Locator _loc ) {
        this(owner,_ann,_term,_loc,1,1);
    }
    
    private Ref.Term term;
    public XSTerm getTerm() { return term.getTerm(); }
    
    private BigInteger maxOccurs;
    public BigInteger getMaxOccurs() { return maxOccurs; }

    public boolean isRepeated() {
        return !maxOccurs.equals(BigInteger.ZERO) && !maxOccurs.equals(BigInteger.ONE);
    }

    private BigInteger minOccurs;
    public BigInteger getMinOccurs() { return minOccurs; }
    
    
    public void redefine(ModelGroupDeclImpl oldMG) {
        if( term instanceof ModelGroupImpl ) {
            ((ModelGroupImpl)term).redefine(oldMG);
            return;
        }
        if( term instanceof DelayedRef.ModelGroup ) {
            ((DelayedRef)term).redefine(oldMG);
        }
    }
    
    
    public XSSimpleType asSimpleType()  { return null; }
    public XSParticle asParticle()      { return this; }
    public XSContentType asEmpty()      { return null; }
    
    
    public final  T apply( XSFunction function ) {
        return function.particle(this);
    }
    public final  T apply( XSContentTypeFunction function ) {
        return function.particle(this);
    }
    public final void visit( XSVisitor visitor ) {
        visitor.particle(this);
    }
    public final void visit( XSContentTypeVisitor visitor ) {
        visitor.particle(this);
    }

    // Ref.ContentType implementation
    public XSContentType getContentType() { return this; }

    /**
     * Foreign attribuets are considered to be on terms.
     *
     * REVISIT: is this a good design?
     */
    @Override
    public List getForeignAttributes() {
        return super.getForeignAttributes();
    }
}