trunk/chemistry-opencmis-server/chemistry-opencmis-server-support/src/main/java/org/apache/chemistry/opencmis/server/support/query/ColumnReference.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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.apache.chemistry.opencmis.server.support.query;

import org.apache.chemistry.opencmis.commons.definitions.PropertyDefinition;
import org.apache.chemistry.opencmis.commons.definitions.TypeDefinition;

public class ColumnReference extends CmisSelector {

    private final String qualifier;      // type qualifier coming from query statement
    private final String propQueryName;  // property query name coming from query statement

    // The following fields are set when the types are resolved:
    private String propertyId;
    private TypeDefinition typeDef;

    public ColumnReference(String qualifier, String propQueryName) {
        this.qualifier = qualifier;
        this.propQueryName = propQueryName;
    }

    public ColumnReference(String propQueryName) {
        this.qualifier = null;
        this.propQueryName = propQueryName;
    }

    public String getQualifier() {
        return qualifier;
    }

    public String getPropertyQueryName() {
        return propQueryName;
    }

    @Override
    public String getName() {
        return propQueryName;
    }

    public void setTypeDefinition(String propertyId, TypeDefinition typeDef) {
        this.typeDef = typeDef;
        this.propertyId = propertyId;
    }

    public TypeDefinition getTypeDefinition() {
        return typeDef;
    }

    public PropertyDefinition<?> getPropertyDefinition() {
        return typeDef.getPropertyDefinitions().get(getPropertyId());
    }

    public String getPropertyId() {
        return propertyId;
    }

    @Override
    public String toString() {
        return "ColumnReference("
                + (qualifier == null ? "" : qualifier + ".")
                + propQueryName + (aliasName == null ? "" : " AS " + aliasName)
                + ")";
    }
}