org.apache.jackrabbit.spi.commons.query.qom.ColumnImpl Maven / Gradle / Ivy
/*
* 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.jackrabbit.spi.commons.query.qom;
import javax.jcr.query.qom.Column;
import org.apache.jackrabbit.spi.Name;
import org.apache.jackrabbit.spi.commons.conversion.NamePathResolver;
/**
* ColumnImpl...
*/
public class ColumnImpl extends AbstractQOMNode implements Column {
/**
* Empty ColumnImpl array.
*/
public static final ColumnImpl[] EMPTY_ARRAY = new ColumnImpl[0];
/**
* The name of the selector.
*/
private final Name selectorName;
/**
* The name of the property.
*/
private final Name propertyName;
/**
* The name of the column.
*/
private final String columnName;
ColumnImpl(NamePathResolver resolver,
Name selectorName,
Name propertyName,
String columnName) {
super(resolver);
this.selectorName = selectorName;
this.propertyName = propertyName;
this.columnName = columnName;
}
/**
* Gets the name of the selector.
*
* @return the selector name; non-null
*/
public Name getSelectorQName() {
return selectorName;
}
/**
* Gets the name of the property.
*
* @return the property name, or null to include a column for each
* single-value non-residual property of the selector's node type
*/
public Name getPropertyQName() {
return propertyName;
}
//---------------------------< Column >-------------------------------------
/**
* Gets the name of the selector.
*
* @return the selector name; non-null
*/
public String getSelectorName() {
return getJCRName(selectorName);
}
/**
* Gets the name of the property.
*
* @return the property name, or null to include a column for each
* single-value non-residual property of the selector's node type
*/
public String getPropertyName() {
return getJCRName(propertyName);
}
/**
* Gets the column name.
*
*
* @return the column name; must be null if getPropertyName is
* null and non-null otherwise
*/
public String getColumnName() {
return columnName;
}
//------------------------< AbstractQOMNode >-------------------------------
/**
* Accepts a visitor and calls the appropriate visit method
* depending on the type of this QOM node.
*
* @param visitor the visitor.
*/
public Object accept(QOMTreeVisitor visitor, Object data) throws Exception {
return visitor.visit(this, data);
}
//------------------------< Object >----------------------------------------
public String toString() {
if (propertyName != null) {
return getSelectorName() + "." + getPropertyName()
+ " AS " + getColumnName();
} else {
return getSelectorName() + ".*";
}
}
}