core/src/main/java/org/eigenbase/sql/validate/ProcedureNamespace.java

/*
// Licensed to Julian Hyde under one or more contributor license
// agreements. See the NOTICE file distributed with this work for
// additional information regarding copyright ownership.
//
// Julian Hyde licenses this file to you 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.eigenbase.sql.validate;

import org.eigenbase.reltype.*;
import org.eigenbase.sql.*;


/**
 * Namespace whose contents are defined by the result of a call to a
 * user-defined procedure.
 *
 * @author John V. Sichi
 * @version $Id$
 */
public class ProcedureNamespace
    extends AbstractNamespace
{
    //~ Instance fields --------------------------------------------------------

    private final SqlValidatorScope scope;

    private final SqlCall call;

    //~ Constructors -----------------------------------------------------------

    ProcedureNamespace(
        SqlValidatorImpl validator,
        SqlValidatorScope scope,
        SqlCall call,
        SqlNode enclosingNode)
    {
        super(validator, enclosingNode);
        this.scope = scope;
        this.call = call;
    }

    //~ Methods ----------------------------------------------------------------

    public RelDataType validateImpl()
    {
        validator.inferUnknownTypes(validator.unknownType, scope, call);
        return validator.deriveTypeImpl(scope, call);
    }

    public SqlNode getNode()
    {
        return call;
    }
}

// End ProcedureNamespace.java