com.rapiddweller.script.expression.CompositeExpression Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of rd-lib-script Show documentation
Show all versions of rd-lib-script Show documentation
'rapiddweller Script' is an open source software library for resolving Java-like script expressions,
forked from Databene Scripts written by Volker Bergmann.
/*
* Copyright (C) 2011-2014 Volker Bergmann ([email protected]).
* All rights reserved.
*
* 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.rapiddweller.script.expression;
import com.rapiddweller.commons.ArrayFormat;
import com.rapiddweller.commons.ArrayUtil;
import com.rapiddweller.script.Expression;
/**
* Expression that evaluates the results of other Expressions.
*
* Created: 18.06.2007 17:02:17
* @author Volker Bergmann
*/
public abstract class CompositeExpression implements WrapperExpression {
protected String symbol;
protected Expression[] terms;
protected CompositeExpression(Expression... terms) {
this(null, terms);
}
protected CompositeExpression(String symbol, Expression... terms) {
this.symbol = symbol;
this.terms = terms;
}
public Expression[] getTerms() {
return terms;
}
@Override
public Expression[] getSourceExpressions() {
return getTerms();
}
public void addTerm(Expression term) {
this.terms = ArrayUtil.append(term, this.terms);
}
@Override
public boolean isConstant() {
for (Expression term : terms)
if (!term.isConstant())
return false;
return true;
}
@Override
public String toString() {
return "(" + ArrayFormat.format(" " + symbol + " ", terms) + ")";
}
}