/*
* #!
* Ontopia Engine
* #-
* Copyright (C) 2001 - 2013 The Ontopia Project
* #-
* 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 net.ontopia.persistence.query.sql;
import net.ontopia.utils.StringUtils;
/**
* INTERNAL: SQL logical expression: and
*/
public class SQLAnd implements SQLExpressionIF {
protected SQLExpressionIF[] expressions;
public SQLAnd(SQLExpressionIF expr1, SQLExpressionIF expr2) {
this.expressions = new SQLExpressionIF[] {expr1, expr2};
}
public SQLAnd(SQLExpressionIF expr1, SQLExpressionIF expr2, SQLExpressionIF expr3) {
this.expressions = new SQLExpressionIF[] {expr1, expr2, expr3};
}
public SQLAnd(SQLExpressionIF[] expressions) {
if (expressions == null) throw new NullPointerException("And expressions cannot be null.");
this.expressions = expressions;
}
public int getType() {
return AND;
}
public SQLExpressionIF[] getExpressions() {
return expressions;
}
public void setExpressions(SQLExpressionIF[] expressions) {
this.expressions = expressions;
}
public String toString() {
return "(" + StringUtils.join(expressions, " and ") + ")";
}
}