org.teiid.query.sql.symbol.XMLForest Maven / Gradle / Ivy

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/*
 * Copyright Red Hat, Inc. and/or its affiliates
 * and other contributors as indicated by the @author tags and
 * the COPYRIGHT.txt file distributed with this work.
 *
 * 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 org.teiid.query.sql.symbol;

import java.util.List;

import org.teiid.core.types.DataTypeManager;
import org.teiid.core.util.EquivalenceUtil;
import org.teiid.core.util.HashCodeUtil;
import org.teiid.query.sql.LanguageObject;
import org.teiid.query.sql.LanguageVisitor;
import org.teiid.query.sql.visitor.SQLStringVisitor;

public class XMLForest implements Expression {

	private List args;
	private XMLNamespaces namespaces;
	
	public XMLForest(List args) {
		this.args = args;
	}
	
	public XMLNamespaces getNamespaces() {
		return namespaces;
	}
	
	public void setNamespaces(XMLNamespaces namespaces) {
		this.namespaces = namespaces;
	}
	
	public List getArgs() {
		return args;
	}

	@Override
	public Class getType() {
		return DataTypeManager.DefaultDataClasses.XML;
	}

	@Override
	public void acceptVisitor(LanguageVisitor visitor) {
		visitor.visit(this);
	}
		
	@Override
	public XMLForest clone() {
		XMLForest clone = new XMLForest(LanguageObject.Util.deepClone(args, DerivedColumn.class));
		if (namespaces != null) {
			clone.namespaces = namespaces.clone();
		}
		return clone;
	}
	
	@Override
	public int hashCode() {
		return HashCodeUtil.hashCode(args.hashCode());
	}
	
	public boolean equals(Object obj) {
		if (obj == this) {
			return true;
		}
		if (!(obj instanceof XMLForest)) {
			return false;
		}
		XMLForest other = (XMLForest)obj;
		return args.equals(other.args) && EquivalenceUtil.areEqual(namespaces, other.namespaces);
	}
	
	@Override
	public String toString() {
		return SQLStringVisitor.getSQLString(this);
	}
	
}