/*
* Copyright 2004-2015 the Seasar Foundation and the Others.
*
* 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.seasar.extension.jdbc.name;
import org.seasar.framework.util.StringUtil;
/**
* プロパティ名をあらわすクラスです。ネストしたプロパティに対応しています。
*
* @author higa
* @param <T>
* プロパティの型です。
*/
public class PropertyName<T> implements CharSequence {
/**
* プロパティの名前です。
*/
protected final String name;
/**
* コンストラクタです。
*/
public PropertyName() {
this(null, null);
}
/**
* コンストラクタです。
*
* @param name
* 名前
*/
public PropertyName(final String name) {
this(null, name);
}
/**
* コンストラクタです。
*
* @param parent
* 親
* @param name
* 名前
*/
public PropertyName(final PropertyName<?> parent, final String name) {
if (StringUtil.isEmpty(name)) {
this.name = "";
return;
}
if (parent == null || parent.length() == 0) {
this.name = name;
return;
}
this.name = parent + "." + name;
}
public char charAt(final int index) {
return name.charAt(index);
}
public int length() {
return name.length();
}
public CharSequence subSequence(final int start, final int end) {
return name.substring(start, end);
}
@Override
public String toString() {
return name;
}
@Override
public boolean equals(final Object obj) {
if (obj == this) {
return true;
}
if (obj instanceof CharSequence) {
return name.equals(obj.toString());
}
return false;
}
@Override
public int hashCode() {
return name.hashCode();
}
}