Bind.java

/*******************************************************************************
 * Copyright (c) 2021 Eclipse RDF4J contributors.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Distribution License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 *******************************************************************************/
package org.eclipse.rdf4j.sparqlbuilder.constraint;

import org.eclipse.rdf4j.sparqlbuilder.core.Assignable;
import org.eclipse.rdf4j.sparqlbuilder.core.Variable;
import org.eclipse.rdf4j.sparqlbuilder.graphpattern.GraphPattern;
import org.eclipse.rdf4j.sparqlbuilder.util.SparqlBuilderUtils;

/**
 * @author Florian Kleedorfer
 * @since 4.0.0
 */
public class Bind implements GraphPattern {
	private static final String AS = " AS ";
	private final Assignable expression;
	private final Variable var;

	Bind(Assignable exp, Variable var) {
		this.expression = exp;
		this.var = var;
	}

	@Override
	public String getQueryString() {
		return "BIND"
				+ SparqlBuilderUtils.getParenthesizedString(
						expression.getQueryString() + AS + var.getQueryString());
	}
}