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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * This code is free software; you can redistribute it and/or modify it

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 * published by the Free Software Foundation.  Oracle designates this

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 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

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package com.sun.xml.internal.xsom.impl;

import com.sun.xml.internal.xsom.XSElementDecl;

import com.sun.xml.internal.xsom.XSIdentityConstraint;

import com.sun.xml.internal.xsom.XSXPath;

import com.sun.xml.internal.xsom.impl.parser.SchemaDocumentImpl;

import com.sun.xml.internal.xsom.visitor.XSFunction;

import com.sun.xml.internal.xsom.visitor.XSVisitor;

import org.xml.sax.Locator;

import java.util.Collections;

import java.util.List;

/**

 * {@link XSIdentityConstraint} implementation.

 *

 * @author Kohsuke Kawaguchi

 */

public class IdentityConstraintImpl extends ComponentImpl implements XSIdentityConstraint, Ref.IdentityConstraint {

    private XSElementDecl parent;

    private final short category;

    private final String name;

    private final XSXPath selector;

    private final List<XSXPath> fields;

    private final Ref.IdentityConstraint refer;

    public IdentityConstraintImpl(SchemaDocumentImpl _owner, AnnotationImpl _annon, Locator _loc,

        ForeignAttributesImpl fa, short category, String name, XPathImpl selector,

        List<XPathImpl> fields, Ref.IdentityConstraint refer) {

        super(_owner, _annon, _loc, fa);

        this.category = category;

        this.name = name;

        this.selector = selector;

        selector.setParent(this);

        for( XPathImpl xp : fields )

            xp.setParent(this);

        this.refer = refer;

    }

    public void visit(XSVisitor visitor) {

        visitor.identityConstraint(this);

    }

    public <T> T apply(XSFunction<T> function) {

        return function.identityConstraint(this);

    }

    public void setParent(ElementDecl parent) {

        this.parent = parent;

        parent.getOwnerSchema().addIdentityConstraint(this);

    }

    public XSElementDecl getParent() {

        return parent;

    }

    public String getName() {

        return name;

    }

    public String getTargetNamespace() {

        return getParent().getTargetNamespace();

    }

    public short getCategory() {

        return category;

    }

    public XSXPath getSelector() {

        return selector;

    }

    public List<XSXPath> getFields() {

        return fields;

    }

    public XSIdentityConstraint getReferencedKey() {

        if(category==KEYREF)

            return refer.get();

        else

            throw new IllegalStateException("not a keyref");

    }

    public XSIdentityConstraint get() {

        return this;

    }

}