CheckedHashSet at revisions 6977

Trivial commit which can not be fundamentally different. In Geotk:

Fields et methods use generic types.
The type field is private, final and documented.
The add method is synchronized, has javadoc, checks for write access, delegates the type check to a ensureValidType protected method, and formats error message using resource bundles. The Geotk relevant code is:

@Override
public boolean add(final E element)
        throws IllegalArgumentException, UnsupportedOperationException
{
    ensureValidType(element);
    synchronized (getLock()) {
        checkWritePermission();
        return super.add(element);
    }
}

Command line:

svn cat -r6977 https://svn.osgeo.org/geotools/trunk/modules/library/metadata/src/main/java/org/geotools/util/CheckedHashSet.java

Revision 6977
/* * Geotools2 - OpenSource mapping toolkit * http://geotools.org * (C) 2002, Geotools Project Managment Committee (PMC) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * / package org.geotools.metadata.iso19115; import java.util.HashSet; /* * Acts as a typed Set while we wait for Java 5.0. * * @author Jody Garnett, Refractions Research / public class SetOf extends HashSet { Class type; public SetOf( Class type ){ this.type = type; } / (non-Javadoc) * @see java.util.HashSet#add(java.lang.Object) */ public boolean add(Object obj) { if( obj != null && !type.isInstance( obj ) ){ throw new IllegalArgumentException( "Cannot add "+obj.getClass().getName() + " to set of "+type.getName() ); } return super.add( obj ); } }

Revision 6977

/*
 *    Geotools2 - OpenSource mapping toolkit
 *    http://geotools.org
 *    (C) 2002, Geotools Project Managment Committee (PMC)
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library 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
 *    Lesser General Public License for more details.
 *
 */
package org.geotools.metadata.iso19115;

import java.util.HashSet;

/**
 * Acts as a typed Set while we wait for Java 5.0.
 *
 * @author Jody Garnett, Refractions Research
 */
public class SetOf extends HashSet {
    Class type;
    public SetOf( Class type ){
        this.type = type;
    }
    /* (non-Javadoc)
     * @see java.util.HashSet#add(java.lang.Object)
     */
    public boolean add(Object obj) {
        if( obj != null && !type.isInstance( obj ) ){
            throw new IllegalArgumentException( "Cannot add "+obj.getClass().getName() + " to set of "+type.getName() );
        }
        return super.add( obj );
    }
}