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/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* 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.apache.tuscany.das.rdb;
import java.util.ArrayList;
import java.util.List;
/**
* A key instance is used to describe a Table key definition. This is used
* primarily for compound keys since simple keys are described with a name.
*
*
*/public class Key {
private List columnNames = new ArrayList();
/**
* Contructor for a single column key
* @param columnName The single column fo rthe key
*/
public Key(String columnName) {
super();
this.columnNames.add(columnName);
}
/**
* Constructor for a compound key
* @param columns The array of column names that compose the key
*/
public Key(String[] columns) {
for (int i=0;i<columns.length; i++) {
this.columnNames.add(columns[i]);
}
}
/**
* Returns a List of column names that compose the key
* @return a list of column names
*/
public List getColumNames() {
return this.columnNames;
}
}
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