/**
* Copyright 2011-2017 Asakusa Framework 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.asakusafw.dmdl.semantics.trait;
import java.util.List;
import com.asakusafw.dmdl.model.AstExpression;
import com.asakusafw.dmdl.model.AstSummarize;
import com.asakusafw.dmdl.semantics.Trait;
/**
* Summarize trait for summarized models.
*/
public class SummarizeTrait implements Trait<SummarizeTrait> {
private final AstExpression<AstSummarize> expression;
private final List<ReduceTerm<AstSummarize>> terms;
/**
* Creates and returns a new instance.
* @param expression the original AST
* @param terms the summarize terms
* @throws IllegalArgumentException if some parameters were {@code null}
*/
public SummarizeTrait(AstExpression<AstSummarize> expression, List<ReduceTerm<AstSummarize>> terms) {
if (expression == null) {
throw new IllegalArgumentException("expression must not be null"); //$NON-NLS-1$
}
if (terms == null) {
throw new IllegalArgumentException("terms must not be null"); //$NON-NLS-1$
}
this.expression = expression;
this.terms = terms;
}
@Override
public AstExpression<AstSummarize> getOriginalAst() {
return expression;
}
/**
* Returns each summarize term.
* @return the terms
*/
public List<ReduceTerm<AstSummarize>> getTerms() {
return terms;
}
}