org.springframework.ldap.odm.core.impl.CaseIgnoreString Maven / Gradle / Ivy
/*
* Copyright 2005-2013 the original author or authors.
*
* 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 org.springframework.ldap.odm.core.impl;
import org.springframework.util.Assert;
// A case independent String wrapper.
/* package */ final class CaseIgnoreString implements Comparable {
private final String string;
private final int hashCode;
public CaseIgnoreString(String string) {
Assert.notNull(string, "string must not be null");
this.string = string;
hashCode = string.toUpperCase().hashCode();
}
public boolean equals(Object other) {
return other instanceof CaseIgnoreString &&
((CaseIgnoreString)other).string.equalsIgnoreCase(string);
}
public int hashCode() {
return hashCode;
}
public int compareTo(CaseIgnoreString other) {
CaseIgnoreString cis = other;
return String.CASE_INSENSITIVE_ORDER.compare(string, cis.string);
}
public String toString() {
return string;
}
}