/*
* Smart GWT (GWT for SmartClient)
* Copyright 2008 and beyond, Isomorphic Software, Inc.
*
* Smart GWT is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3
* is published by the Free Software Foundation. Smart GWT is also
* available under typical commercial license terms - see
* http://smartclient.com/license
*
* This software 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 com.smartgwt.client.bean.types;
import com.smartgwt.client.bean.BeanValueType;
import com.smartgwt.client.bean.BeanValueType.Convertability;
public class BooleanValueType extends BeanValueType<Boolean> {
public static void registerValueType () {
// We check first to see if it's already registered, to avoid
// constructing the singleton over and over again. This will
// be called multiple times as various BeanFactories initialize
// themselves.
if (BeanValueType.getBeanValueType(Boolean.class) == null) {
BeanValueType.registerBeanValueType(new BooleanValueType());
}
// Register the primitive type as well, since we can't do that via
// an interface.
PBooleanValueType.registerValueType();
}
@Override
protected Class getValueType () {
return Boolean.class;
}
@Override
protected boolean isAssignableFrom (Object value) {
return value == null || value instanceof Boolean;
}
@Override
public Convertability convertabilityFrom (Object value) {
if (value instanceof Boolean) return Convertability.EXACT;
if (value instanceof Number) return Convertability.SUPPORTED;
if (value instanceof String) return Convertability.SUPPORTED;
return super.convertabilityFrom(value);
}
@Override
public Boolean convertFrom (Object value) {
if (value instanceof Boolean) {
return (Boolean) value;
} else if (value instanceof Number) {
return ((Number) value).intValue() == 0 ? false : true;
} else if (value instanceof String) {
return Boolean.valueOf((String) value);
} else {
return super.convertFrom(value);
}
}
}