hadoop Result 源码
haddop Result 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/find/Result.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.hadoop.fs.shell.find;
public final class Result {
/** Result indicating {@link Expression} processing should continue. */
public static final Result PASS = new Result(true, true);
/** Result indicating {@link Expression} processing should stop. */
public static final Result FAIL = new Result(false, true);
/**
* Result indicating {@link Expression} processing should not descend any more
* directories.
*/
public static final Result STOP = new Result(true, false);
private boolean descend;
private boolean success;
private Result(boolean success, boolean recurse) {
this.success = success;
this.descend = recurse;
}
/**
* Should further directories be descended.
* @return if is pass true,not false.
*/
public boolean isDescend() {
return this.descend;
}
/**
* Should processing continue.
* @return if is pass true,not false.
*/
public boolean isPass() {
return this.success;
}
/**
* Returns the combination of this and another result.
* @param other other.
* @return result.
*/
public Result combine(Result other) {
return new Result(this.isPass() && other.isPass(), this.isDescend()
&& other.isDescend());
}
/**
* Negate this result.
* @return Result.
*/
public Result negate() {
return new Result(!this.isPass(), this.isDescend());
}
@Override
public String toString() {
return "success=" + isPass() + "; recurse=" + isDescend();
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (descend ? 1231 : 1237);
result = prime * result + (success ? 1231 : 1237);
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Result other = (Result) obj;
if (descend != other.descend)
return false;
if (success != other.success)
return false;
return true;
}
}
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