/*
* Copyright 2015, The Querydsl Team (http://www.querydsl.com/team)
*
* 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 com.querydsl.core.types;
import java.util.Arrays;
import java.util.List;
/**
* @author tiwe
*
*/
public class Concatenation extends FactoryExpressionBase<String> {
private static final long serialVersionUID = -355693583588722395L;
private final List<Expression<?>> args;
public Concatenation(Expression<?>... args) {
super(String.class);
this.args = Arrays.asList(args);
}
@Override
public List<Expression<?>> getArgs() {
return args;
}
@Override
public String newInstance(Object... args) {
StringBuilder builder = new StringBuilder();
for (Object a : args) {
builder.append(a);
}
return builder.toString();
}
@Override
public <R, C> R accept(Visitor<R, C> v, C context) {
return v.visit(this, context);
}
}