AggregationField.java

/*
 * Copyright 2013 Future Systems
 * 
 * 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.araqne.logdb.query.aggregator;

public class AggregationField {
	// generated field name
	private String name;

	// aggregation function template for cloning
	private AggregationFunction function;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public AggregationFunction getFunction() {
		return function;
	}

	public void setFunction(AggregationFunction function) {
		this.function = function;
	}

	@Override
	public String toString() {
		if (function.toString().equals(name))
			return function.toString();
		return function + " as " + name;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;

		if (!(obj instanceof AggregationField))
			return false;

		AggregationField other = (AggregationField) obj;
		return (name == null ? other.name == null : name.equals(other.name)) &&
				(function == null ? other.function == null : function.equals(other.function));
	}
}