// Copyright 2012 Georg-August-Universität Göttingen, Germany // // 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 de.ugoe.cs.autoquest.tasktrees.temporalrelation; import de.ugoe.cs.autoquest.tasktrees.taskequality.TaskEquality; import de.ugoe.cs.autoquest.tasktrees.treeifc.ITask; import de.ugoe.cs.autoquest.usageprofiles.SymbolComparator; import de.ugoe.cs.autoquest.usageprofiles.SymbolMap; import de.ugoe.cs.autoquest.usageprofiles.SymbolStrategy; /** *
* concrete implementation of a symbol strategy required in the creation of a * {@link de.ugoe.cs.autoquest.usageprofiles.Trie}. The strategy can be parameterized with a * considered task equality. It uses task instance comparators to perform task comparison. * It creates task specific symbol maps, which are {@link TaskSymbolIdentityMap} and * {@link TaskSymbolBucketedMap} depending on the level of considered task equality. *
* * @author Patrick Harms */ public class TaskHandlingStrategy implements SymbolStrategy* the level of task equality considered in this task handling strategy *
*/ private TaskEquality consideredEquality; /** ** the comparator used for task comparisons *
*/ private TaskComparator comparator; /** ** initializes this strategy with a task equality to be considered for task comparisons *
* * @param consideredEquality the task equality to be considered for task comparisons */ public TaskHandlingStrategy(TaskEquality consideredEquality) { this.consideredEquality = consideredEquality; if (this.consideredEquality == TaskEquality.IDENTICAL) { comparator = new TaskIdentityComparator(); } else { comparator = new TaskComparator(this.consideredEquality); } } /* (non-Javadoc) * @see de.ugoe.cs.autoquest.usageprofiles.SymbolStrategy#getSymbolComparator() */ @Override public SymbolComparator* convenience method to have a correctly typed return value as alternative to * {@link #getSymbolComparator()}; *
*/ public TaskComparator getTaskComparator() { return comparator; } /* (non-Javadoc) * @see de.ugoe.cs.autoquest.usageprofiles.SymbolStrategy#createSymbolMap() */ @Override public