/*
* Copyright 2008 Wen Tao. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.qi4j.library.beans.properties;
import org.qi4j.api.common.AppliesToFilter;
import java.beans.Introspector;
import java.lang.reflect.Method;
public class MethodPrefixFilter implements PropertyNameExtractor, AppliesToFilter
{
private String prefix;
public MethodPrefixFilter( String prefix )
{
this.prefix = prefix;
}
public boolean appliesTo( Method method, Class<?> mixin, Class<?> compositeType, Class<?> fragmentClass )
{
return matches( method.getName() );
}
public boolean matches( String methodName )
{
return methodName.startsWith( prefix );
}
public String extractPropertyName( String methodName )
{
if( !matches( methodName ) )
{
return null;
}
return Introspector.decapitalize( methodName.substring( prefix.length() ) );
}
}