IndexFilterChecker.java

/*
 * Copyright (c) www.bugull.com
 * 
 * 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 net.tooan.ynpay.third.mongodb.lucene.backend;

import net.tooan.ynpay.third.mongodb.BuguEntity;
import net.tooan.ynpay.third.mongodb.cache.FieldsCache;
import net.tooan.ynpay.third.mongodb.lucene.annotations.Compare;
import net.tooan.ynpay.third.mongodb.lucene.annotations.IndexFilter;

import java.lang.reflect.Field;

/**
 * @author Frank Wen(xbwen@hotmail.com)
 */
public class IndexFilterChecker {

    private BuguEntity obj;

    public IndexFilterChecker(BuguEntity obj) {
        this.obj = obj;
    }

    public boolean needIndex() {
        Class<?> clazz = obj.getClass();
        Field[] fields = FieldsCache.getInstance().get(clazz);
        for (Field f : fields) {
            IndexFilter filter = f.getAnnotation(IndexFilter.class);
            if (filter != null) {
                Compare compare = filter.compare();
                String value = filter.value();
                CompareChecker checker = new CompareChecker(obj);
                if (!checker.isFit(f, compare, value)) {
                    return false;
                }
            }
        }
        return true;
    }

}