indexinglanguage/src/main/java/com/yahoo/vespa/indexinglanguage/expressions/ParenthesisExpression.java


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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.indexinglanguage.expressions;

import com.yahoo.document.DataType;
import com.yahoo.document.DocumentType;
import com.yahoo.document.Field;
import com.yahoo.vespa.indexinglanguage.ExpressionConverter;
import com.yahoo.vespa.objects.ObjectOperation;
import com.yahoo.vespa.objects.ObjectPredicate;

/**
 * @author Simon Thoresen Hult
 */
public class ParenthesisExpression extends CompositeExpression {

    private final Expression innerExp;

    public ParenthesisExpression(Expression innerExp) {
        super(innerExp.requiredInputType());
        this.innerExp = innerExp;
    }

    public Expression getInnerExpression() {
        return innerExp;
    }

    @Override
    public ParenthesisExpression convertChildren(ExpressionConverter converter) {
        return new ParenthesisExpression(converter.convert(innerExp));
    }

    @Override
    public void setStatementOutput(DocumentType documentType, Field field) {
        innerExp.setStatementOutput(documentType, field);
    }

    @Override
    protected void doExecute(ExecutionContext context) {
        innerExp.execute(context);
    }

    @Override
    protected void doVerify(VerificationContext context) {
        innerExp.verify(context);
    }

    @Override
    public DataType createdOutputType() {
        return innerExp.createdOutputType();
    }

    @Override
    public String toString() {
        return "(" + innerExp + ")";
    }

    @Override
    public boolean equals(Object obj) {
        if (!(obj instanceof ParenthesisExpression rhs)) return false;
        if (!innerExp.equals(rhs.innerExp)) return false;
        return true;
    }

    @Override
    public int hashCode() {
        return getClass().hashCode() + innerExp.hashCode();
    }

    @Override
    public void selectMembers(ObjectPredicate predicate, ObjectOperation operation) {
        select(innerExp, predicate, operation);
    }

}