/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.jackrabbit.oak.query.ast;
import java.util.Locale;
import javax.jcr.PropertyType;
import org.apache.jackrabbit.oak.api.PropertyValue;
import org.apache.jackrabbit.oak.api.Type;
import org.apache.jackrabbit.oak.query.SQL2Parser;
/**
* A literal of a certain data type, possibly "cast(..)" of a literal.
*/
public class LiteralImpl extends StaticOperandImpl {
private final PropertyValue value;
public LiteralImpl(PropertyValue value) {
this.value = value;
}
public PropertyValue getLiteralValue() {
return value;
}
@Override
boolean accept(AstVisitor v) {
return v.visit(this);
}
@Override
public String toString() {
String type = PropertyType.nameFromValue(value.getType().tag());
return "cast(" + escape() + " as " + type.toLowerCase(Locale.ENGLISH) + ')';
}
private String escape() {
return SQL2Parser.escapeStringLiteral(value.getValue(Type.STRING));
}
@Override
PropertyValue currentValue() {
// TODO namespace remapping?
return value;
}
@Override
int getPropertyType() {
PropertyValue v = currentValue();
return v == null ? PropertyType.UNDEFINED : v.getType().tag();
}
}