gson-comments/gson/src/main/java/com/google/gson/ModifierBasedExclusionStrategy.java
2008-09-01 03:13:32 +00:00

61 lines
1.7 KiB
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.google.gson;
import java.lang.reflect.Field;
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 boolean skipSyntheticField;
private final Collection<Integer> modifiers;
public ModifierBasedExclusionStrategy(boolean skipSyntheticFields, int... modifiers) {
this.skipSyntheticField = skipSyntheticFields;
this.modifiers = new HashSet<Integer>();
if (modifiers != null) {
for (int modifier : modifiers) {
this.modifiers.add(modifier);
}
}
}
public boolean shouldSkipField(Field f) {
if (skipSyntheticField && f.isSynthetic()) {
return true;
}
int objectModifiers = f.getModifiers();
for (int modifier : modifiers) {
if ((objectModifiers & modifier) != 0) {
return true;
}
}
return false;
}
public boolean shouldSkipClass(Class<?> clazz) {
return false;
}
}