/**
* SqlJetBetweenExpression.java
* Copyright (C) 2009-2010 TMate Software Ltd
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
package org.tmatesoft.sqljet.core.internal.schema;
import org.antlr.runtime.tree.CommonTree;
import org.tmatesoft.sqljet.core.SqlJetException;
import org.tmatesoft.sqljet.core.schema.ISqlJetBetweenExpression;
import org.tmatesoft.sqljet.core.schema.ISqlJetExpression;
/**
* @author TMate Software Ltd.
* @author Dmitry Stadnik (dtrace@seznam.cz)
*/
public class SqlJetBetweenExpression extends SqlJetExpression implements ISqlJetBetweenExpression {
private final ISqlJetExpression expression, lowerBound, upperBound;
private final boolean not;
public SqlJetBetweenExpression(CommonTree ast) throws SqlJetException {
assert "between".equalsIgnoreCase(ast.getText());
int idx = 0;
CommonTree child = (CommonTree) ast.getChild(idx++);
if ("not".equalsIgnoreCase(child.getText())) {
not = true;
child = (CommonTree) ast.getChild(idx++);
} else {
not = false;
}
expression = create((CommonTree) ast.getChild(idx++));
lowerBound = create((CommonTree) ast.getChild(idx++));
upperBound = create((CommonTree) ast.getChild(idx++));
}
public ISqlJetExpression getExpression() {
return expression;
}
public boolean isNot() {
return not;
}
public ISqlJetExpression getLowerBound() {
return lowerBound;
}
public ISqlJetExpression getUpperBound() {
return upperBound;
}
@Override
public String toString() {
StringBuffer buffer = new StringBuffer();
buffer.append(getExpression());
if (isNot()) {
buffer.append(" NOT");
}
buffer.append(" BETWEEN ");
buffer.append(getLowerBound());
buffer.append(" AND ");
buffer.append(getUpperBound());
return buffer.toString();
}
}