NamedPropertyCriteria.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.apache.deltaspike.data.impl.property.query;

import java.beans.Introspector;
import java.lang.reflect.Field;
import java.lang.reflect.Method;

/**
 * A criteria that matches a property based on name
 * @see PropertyCriteria
 */
public class NamedPropertyCriteria implements PropertyCriteria
{
    private final String[] propertyNames;

    public NamedPropertyCriteria(String... propertyNames)
    {
        this.propertyNames = propertyNames;
    }

    @Override
    public boolean fieldMatches(Field f)
    {
        for (String propertyName : propertyNames)
        {
            if (propertyName.equals(f.getName()))
            {
                return true;
            }
        }
        return false;
    }

    @Override
    public boolean methodMatches(Method m)
    {
        for (String propertyName : propertyNames)
        {
            if (m.getName().startsWith("get") &&
                    Introspector.decapitalize(m.getName().substring(3)).equals(propertyName))
            {
                return true;
            }

        }
        return false;
    }
}