| //////////////////////////////////////////////////////////////////////////////// |
| // |
| // 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 mx.collections |
| { |
| |
| /** |
| * The ISummaryCalculator interface defines the interface |
| * implemented by custom summary calculator classes. |
| * An instance of a class that implements this interface can be passed |
| * to the <code>summaryOperation</code> property of the <code>SummaryField2</code> Class. |
| * |
| * <p>Implement the methods of this interface in two groups. The first group consists of the |
| * <code>summaryCalculationBegin()</code>, <code>calculateSummary()</code>, and <code>returnSummary()</code> methods. |
| * Use these methods to compute summary of the values.</p> |
| * |
| * <p>The second group consists of the |
| * <code>summaryOfSummaryCalculationBegin()</code>, <code>calculateSummaryOfSummary()</code>, |
| * and <code>returnSummaryOfSummary()</code> methods. |
| * Use these methods to compute summary of summary values.</p> |
| * |
| * @see mx.collections.SummaryField2 |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10 |
| * @playerversion AIR 1.5 |
| * @productversion Flex 4 |
| */ |
| public interface ISummaryCalculator |
| { |
| //-------------------------------------------------------------------------- |
| // |
| // Methods |
| // |
| //-------------------------------------------------------------------------- |
| |
| /** |
| * Flex calls this method to start the computation of a summary value. |
| * |
| * @param field The SummaryField2 for which the summary needs to calculated. |
| * |
| * @return An Object initialized for the summary calculation. |
| * Use this Object to hold any information necessary to perform the calculation. |
| * You pass this Object to subsequent calls to the <code>calculateSummary()</code> |
| * and <code>returnSummary()</code> methods. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10 |
| * @playerversion AIR 1.5 |
| * @productversion Flex 4 |
| */ |
| function summaryCalculationBegin(field:SummaryField2):Object; |
| |
| /** |
| * Flex calls this method when a new value needs to be added to the summary value. |
| * |
| * @param data The Object returned by the call to the <code>summaryCalculationBegin()</code> method, |
| * or calculated by a previous call to the <code>calculateSummary()</code> method. |
| * Use this Object to hold information necessary to perform the calculation. |
| * This method modifies this Object; it does not return a value. |
| * |
| * @param field The SummaryField2 for which the summary needs to calculated. |
| * |
| * @param rowData The object representing the rows data that is being analyzed. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10 |
| * @playerversion AIR 1.5 |
| * @productversion Flex 4 |
| */ |
| function calculateSummary(data:Object, field:SummaryField2, rowData:Object):void; |
| |
| /** |
| * Flex calls this method to end the computation of the summary value. |
| * |
| * @param data The Object returned by the call to the <code>calculateSummary()</code> method. |
| * Use this Object to hold information necessary to perform the calculation. |
| * |
| * @param field The SummaryField2 for which the summary needs to calculated. |
| * |
| * @return The summary value. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10 |
| * @playerversion AIR 1.5 |
| * @productversion Flex 4 |
| */ |
| function returnSummary(data:Object, field:SummaryField2):Number; |
| |
| /** |
| * Flex calls this method to start calculation of summary out of summary values. |
| * Calculating the average value of a group of averages is an example of |
| * an calculation of summary out of summary values. |
| * |
| * @param value The Object returned by the call to the <code>calculateSummary()</code> method |
| * for a previous summary calculation. |
| * Use this Object to hold the information necessary to perform the calculation. |
| * |
| * @param field The SummaryField2 for which the summary needs to calculated. |
| * |
| * @return An Object initialized for the summary calculation. |
| * Use this Object to hold any information necessary to perform the calculation. |
| * You pass this Object to subsequent calls to the <code>calculateSummaryOfSummary()</code> |
| * and <code>returnSummaryOfSummary()</code> methods. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10 |
| * @playerversion AIR 1.5 |
| * @productversion Flex 4 |
| */ |
| function summaryOfSummaryCalculationBegin(value:Object, field:SummaryField2):Object; |
| |
| /** |
| * Flex calls this method when a new summary value needs to be added to the already computed summary. |
| * |
| * @param value The Object returned by a call the <code>summaryOfSummaryCalculationBegin()</code> method, |
| * or calculated by a previous call to the <code>calculateSummaryOfSummary()</code> method. |
| * This method modifies this Object; it does not return a value. |
| * |
| * @param newValue The Object returned by the call to the <code>returnSummary()</code> method |
| * for a previous aggregation. |
| * |
| * @param field The SummaryField2 for which the summary needs to calculated. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10 |
| * @playerversion AIR 1.5 |
| * @productversion Flex 4 |
| */ |
| function calculateSummaryOfSummary(value:Object, newValue:Object, field:SummaryField2):void; |
| |
| /** |
| * Flex calls this method to end the summary calculation. |
| * |
| * @param value The Object returned by a call to the <code>calculateSummaryOfSummary()</code> method |
| * that is used to store the summary calculation results. |
| * This method modifies this Object; it does not return a value. |
| * |
| * @param field The SummaryField2 for which the summary needs to calculated. |
| * |
| * @return The summary value. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10 |
| * @playerversion AIR 1.5 |
| * @productversion Flex 4 |
| */ |
| function returnSummaryOfSummary(value:Object, field:SummaryField2):Number; |
| } |
| } |