Java example source code file (ElementDecl.java)

This example Java source code file (ElementDecl.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

boolean, declarationimpl, elementdecl, foreignattributesimpl, illegalargumentexception, list, object, patchermanager, sax, set, util, xmlstring, xselementdecl, xsidentityconstraint, xstermfunction, xstype

The ElementDecl.java Java example source code

/*
 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

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.XSModelGroup;
import com.sun.xml.internal.xsom.XSModelGroupDecl;
import com.sun.xml.internal.xsom.XSTerm;
import com.sun.xml.internal.xsom.XSType;
import com.sun.xml.internal.xsom.XSWildcard;
import com.sun.xml.internal.xsom.XmlString;
import com.sun.xml.internal.xsom.impl.parser.PatcherManager;
import com.sun.xml.internal.xsom.impl.parser.SchemaDocumentImpl;
import com.sun.xml.internal.xsom.visitor.XSFunction;
import com.sun.xml.internal.xsom.visitor.XSTermFunction;
import com.sun.xml.internal.xsom.visitor.XSTermFunctionWithParam;
import com.sun.xml.internal.xsom.visitor.XSTermVisitor;
import com.sun.xml.internal.xsom.visitor.XSVisitor;
import org.xml.sax.Locator;

import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class ElementDecl extends DeclarationImpl implements XSElementDecl, Ref.Term
{
    public ElementDecl( PatcherManager reader, SchemaDocumentImpl owner,
        AnnotationImpl _annon, Locator _loc, ForeignAttributesImpl fa,
        String _tns, String _name, boolean _anonymous,

        XmlString _defv, XmlString _fixedv,
        boolean _nillable, boolean _abstract, Boolean _form,
        Ref.Type _type, Ref.Element _substHead,
        int _substDisallowed, int _substExcluded,
        List<IdentityConstraintImpl> idConstraints) {

        super(owner,_annon,_loc,fa,_tns,_name,_anonymous);

        this.defaultValue = _defv;
        this.fixedValue = _fixedv;
        this.nillable = _nillable;
        this._abstract = _abstract;
        this.form = _form;
        this.type = _type;
        this.substHead = _substHead;
        this.substDisallowed = _substDisallowed;
        this.substExcluded = _substExcluded;
        this.idConstraints = Collections.unmodifiableList((List<? extends XSIdentityConstraint>)idConstraints);

        for (IdentityConstraintImpl idc : idConstraints)
            idc.setParent(this);

        if(type==null)
            throw new IllegalArgumentException();
    }

    private XmlString defaultValue;
    public XmlString getDefaultValue() { return defaultValue; }

    private XmlString fixedValue;
    public XmlString getFixedValue() { return fixedValue; }

    private boolean nillable;
    public boolean isNillable() { return nillable; }

    private boolean _abstract;
    public boolean isAbstract() { return _abstract; }

    private Ref.Type type;
    public XSType getType() { return type.getType(); }

    private Ref.Element substHead;
    public XSElementDecl getSubstAffiliation() {
        if(substHead==null)     return null;
        return substHead.get();
    }

    private int substDisallowed;
    public boolean isSubstitutionDisallowed( int method ) {
        return (substDisallowed&method)!=0;
    }

    private int substExcluded;
    public boolean isSubstitutionExcluded( int method ) {
        return (substExcluded&method)!=0;
    }

    private final List<XSIdentityConstraint> idConstraints;
    public List<XSIdentityConstraint> getIdentityConstraints() {
        return idConstraints;
    }

    private Boolean form;
    public Boolean getForm() {
        return form;
    }


    /**
     * @deprecated
     */
    public XSElementDecl[] listSubstitutables() {
        Set<? extends XSElementDecl> s = getSubstitutables();
        return s.toArray(new XSElementDecl[s.size()]);
    }

    /** Set that represents element decls that can substitute this element. */
    private Set<XSElementDecl> substitutables = null;

    /** Unmodifieable view of {@link #substitutables}. */
    private Set<XSElementDecl> substitutablesView = null;

    public Set<? extends XSElementDecl> getSubstitutables() {
        if( substitutables==null ) {
            // if the field is null by the time this method
            // is called, it means this element is substitutable by itself only.
            substitutables = substitutablesView = Collections.singleton((XSElementDecl)this);
        }
        return substitutablesView;
    }

    protected void addSubstitutable( ElementDecl decl ) {
        if( substitutables==null ) {
            substitutables = new HashSet<XSElementDecl>();
            substitutables.add(this);
            substitutablesView = Collections.unmodifiableSet(substitutables);
        }
        substitutables.add(decl);
    }


    public void updateSubstitutabilityMap() {
        ElementDecl parent = this;
        XSType type = this.getType();

        boolean rused = false;
        boolean eused = false;

        while( (parent=(ElementDecl)parent.getSubstAffiliation())!=null ) {

            if(parent.isSubstitutionDisallowed(XSType.SUBSTITUTION))
                continue;

            boolean rd = parent.isSubstitutionDisallowed(XSType.RESTRICTION);
            boolean ed = parent.isSubstitutionDisallowed(XSType.EXTENSION);

            if( (rd && rused) || ( ed && eused ) )   continue;

            XSType parentType = parent.getType();
            while (type!=parentType) {
                if(type.getDerivationMethod()==XSType.RESTRICTION)  rused = true;
                else                                                eused = true;

                type = type.getBaseType();
                if(type==null)  // parentType and type doesn't share the common base type. a bug in the schema.
                    break;

                if( type.isComplexType() ) {
                    rd |= type.asComplexType().isSubstitutionProhibited(XSType.RESTRICTION);
                    ed |= type.asComplexType().isSubstitutionProhibited(XSType.EXTENSION);
                }
                if (getRoot().getAnyType().equals(type)) break;
            }

            if( (rd && rused) || ( ed && eused ) )   continue;

            // this element can substitute "parent"
            parent.addSubstitutable(this);
        }
    }

    public boolean canBeSubstitutedBy(XSElementDecl e) {
        return getSubstitutables().contains(e);
    }

    public boolean isWildcard()                 { return false; }
    public boolean isModelGroupDecl()           { return false; }
    public boolean isModelGroup()               { return false; }
    public boolean isElementDecl()              { return true; }

    public XSWildcard asWildcard()              { return null; }
    public XSModelGroupDecl asModelGroupDecl()  { return null; }
    public XSModelGroup asModelGroup()          { return null; }
    public XSElementDecl asElementDecl()        { return this; }




    public void visit( XSVisitor visitor ) {
        visitor.elementDecl(this);
    }
    public void visit( XSTermVisitor visitor ) {
        visitor.elementDecl(this);
    }
    public Object apply( XSTermFunction function ) {
        return function.elementDecl(this);
    }

    public <T,P> T apply(XSTermFunctionWithParam function, P param) {
        return function.elementDecl(this,param);
    }

    public Object apply( XSFunction function ) {
        return function.elementDecl(this);
    }


    // Ref.Term implementation
    public XSTerm getTerm() { return this; }
}