org.codehaus.stax2.ri.evt.NotationDeclarationEventImpl Maven / Gradle / Ivy

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package org.codehaus.stax2.ri.evt;

import java.io.IOException;
import java.io.Writer;

import javax.xml.stream.*;

import org.codehaus.stax2.XMLStreamWriter2;
import org.codehaus.stax2.evt.NotationDeclaration2;

public class NotationDeclarationEventImpl
    extends BaseEventImpl
    implements NotationDeclaration2
{
    /**
     * Name/id of the notation, used to reference declaration.
     */
    final String mName;

    final String mPublicId;

    final String mSystemId;

    public NotationDeclarationEventImpl(Location loc,
                                        String name, String pubId, String sysId)
    {
        super(loc);
        mName = name;
        mPublicId = pubId;
        mSystemId = sysId;
    }

    public String getName() {
        return mName;
    }

    public String getPublicId() {
        return mPublicId;
    }

    public String getSystemId() {
        return mSystemId;
    }

    /**
     * Empty base implementation: sub-classes should implement
     */
    public String getBaseURI()
    {
        return "";
    }

    /*
    ///////////////////////////////////////////
    // Implementation of abstract base methods
    ///////////////////////////////////////////
     */

    public int getEventType() {
        return NOTATION_DECLARATION;
    }

    public void writeAsEncodedUnicode(Writer w)
        throws XMLStreamException
    {
        try {
            w.write("');
        } catch (IOException ie) {
            throwFromIOE(ie);
        }
    }

    /**
     * This method does not make much sense for this event type -- the reason
     * being that the notation declarations can only be written as part of
     * a DTD (internal or external subset), not separately. Can basically
     * choose to either skip silently (output nothing), or throw an
     * exception.
     */
    public void writeUsing(XMLStreamWriter2 w) throws XMLStreamException
    {
        /* Fail silently, or throw an exception? Let's do latter; at least
         * then we'll get useful (?) bug reports!
         */
        throw new XMLStreamException("Can not write notation declarations using an XMLStreamWriter");
    }

    /*
    ///////////////////////////////////////////
    // Standard method impl
    ///////////////////////////////////////////
     */

    public boolean equals(Object o)
    {
        if (o == this) return true;
        if (o == null) return false;

        if (!(o instanceof NotationDeclaration2)) return false;

        NotationDeclaration2 other = (NotationDeclaration2) o;
        // should we consider Base URI here?
        return stringsWithNullsEqual(getName(), other.getName())
            && stringsWithNullsEqual(getPublicId(), other.getPublicId())
            && stringsWithNullsEqual(getSystemId(), other.getSystemId())
            && stringsWithNullsEqual(getBaseURI(), other.getBaseURI())
            ;
    }

    public int hashCode()
    {
        int hash = 0;
        if (mName != null) hash ^= mName.hashCode();
        if (mPublicId != null) hash ^= mPublicId.hashCode();
        if (mSystemId != null) hash ^= mSystemId.hashCode();
        return hash;
    }
}