/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
*
* 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.feature.type;
import java.util.List;
import org.geotools.resources.Classes;
import org.opengis.feature.type.AttributeType;
import org.opengis.feature.type.Name;
import org.opengis.filter.Filter;
import org.opengis.util.InternationalString;
/**
* Base class for attribute types.
*
* @author Justin Deoliveira, The Open Planning Project, jdeolive@openplans.org
*
*
* @source $URL$
*/
public class AttributeTypeImpl extends PropertyTypeImpl implements AttributeType {
final protected boolean identified;
public AttributeTypeImpl(
Name name, Class<?> binding, boolean identified, boolean isAbstract,
List<Filter> restrictions, AttributeType superType, InternationalString description
) {
super(name, binding, isAbstract, restrictions, superType, description);
this.identified = identified;
}
public boolean isIdentified() {
return identified;
}
/**
* Allows this AttributeType to convert an argument to its prefered storage
* type. If no parsing is possible, returns the original value. If a parse
* is attempted, yet fails (i.e. a poor decimal format) throw the Exception.
* This is mostly for use internally in Features, but implementors should
* simply follow the rules to be safe.
*
* @param value
* the object to attempt parsing of.
*
* @return <code>value</code> converted to the preferred storage of this
* <code>AttributeType</code>. If no parsing was possible then
* the same object is returned.
*
* @throws IllegalArgumentException
* if parsing is attempted and is unsuccessful.
*/
public Object parse(Object value) throws IllegalArgumentException {
//do nothing, sublcasses should override
return value;
}
public Object createDefaultValue() {
return null;
}
public AttributeType getSuper() {
return (AttributeType) super.getSuper();
}
/**
* Override of hashcode.
*/
public int hashCode() {
return super.hashCode() ^ Boolean.valueOf(identified).hashCode();
}
/**
* Override of equals.
*
* @param other
* the object to be tested for equality.
*
* @return whether other is equal to this attribute Type.
*/
public boolean equals(Object other) {
if(this == other)
return true;
if (!(other instanceof AttributeType)) {
return false;
}
if (!super.equals(other))
return false;
AttributeType att = (AttributeType) other;
if (identified != att.isIdentified()) {
return false;
}
return true;
}
public String toString() {
StringBuffer sb = new StringBuffer(Classes.getShortClassName(this));
sb.append(" ");
sb.append( getName() );
if( isAbstract() ){
sb.append( " abstract" );
}
if( isIdentified() ){
sb.append( " identified" );
}
if( superType != null ){
sb.append( " extends ");
sb.append( superType.getName().getLocalPart() );
}
if( binding != null ){
sb.append( "<" );
sb.append( Classes.getShortName( binding ) );
sb.append( ">" );
}
if( description != null ){
sb.append("\n\tdescription=");
sb.append( description );
}
if( restrictions != null && !restrictions.isEmpty() ){
sb.append("\nrestrictions=");
boolean first = true;
for( Filter filter : restrictions ){
if( first ){
first = false;
}
else {
sb.append( " AND " );
}
sb.append( filter );
}
}
return sb.toString();
}
}