org.tinygroup.tinysqldsl.expression.WindowOffset Maven / Gradle / Ivy
/**
* Copyright (c) 1997-2013, www.tinygroup.org ([email protected]).
*
* Licensed under the GPL, Version 3.0 (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.gnu.org/licenses/gpl.html
*
* 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.tinygroup.tinysqldsl.expression;
public class WindowOffset {
private Expression expression;
private Type type;
public Expression getExpression() {
return expression;
}
public void setExpression(Expression expression) {
this.expression = expression;
}
public Type getType() {
return type;
}
public void setType(Type type) {
this.type = type;
}
public String toString() {
StringBuilder buffer = new StringBuilder();
if (expression != null) {
buffer.append(' ').append(expression);
if (type != null) {
buffer.append(' ');
buffer.append(type);
}
} else {
switch (type) {
case PRECEDING:
buffer.append(" UNBOUNDED PRECEDING");
break;
case FOLLOWING:
buffer.append(" UNBOUNDED FOLLOWING");
break;
case CURRENT:
buffer.append(" CURRENT ROW");
break;
default:
break;
}
}
return buffer.toString();
}
public enum Type {
PRECEDING,
FOLLOWING,
CURRENT,
EXPR
}
}