ModifierBasedExclusionStrategy.java

/*
 * Copyright (C) 2008 Google Inc.
 *
 * 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 com.smartandroid.sa.json;

import java.util.Collection;
import java.util.HashSet;

/**
 * Exclude fields based on particular field modifiers. For a list of possible
 * modifiers, see {@link java.lang.reflect.Modifier}.
 * 
 * @author Inderjeet Singh
 * @author Joel Leitch
 */
final class ModifierBasedExclusionStrategy implements ExclusionStrategy {
	private final Collection<Integer> modifiers;

	public ModifierBasedExclusionStrategy(int... modifiers) {
		this.modifiers = new HashSet<Integer>();
		if (modifiers != null) {
			for (int modifier : modifiers) {
				this.modifiers.add(modifier);
			}
		}
	}

	public boolean shouldSkipField(FieldAttributes f) {
		for (int modifier : modifiers) {
			if (f.hasModifier(modifier)) {
				return true;
			}
		}
		return false;
	}

	public boolean shouldSkipClass(Class<?> clazz) {
		return false;
	}
}