TaskID extends org.apache.hadoop.mapred.ID { @Deprecated public boolean isMap() { return type == TaskType.MAP; } TaskID(JobID jobId, TaskType type, int id);  TaskID(String jtIdentifier, int jobId, TaskType type, int id); @Deprecated  TaskID(JobID jobId, boolean isMap, int id); @Deprecated  TaskID(String jtIdentifier, int jobId, boolean isMap, int id);  TaskID(); JobID getJobID(); @Deprecated boolean isMap(); TaskType getTaskType(); @Override boolean equals(Object o); @Override int compareTo(ID o); @Override String toString(); @Override int hashCode(); @Override void readFields(DataInput in); @Override void write(DataOutput out); static TaskID forName(String str); static char getRepresentingCharacter(TaskType type); static TaskType getTaskType(char c); static String getAllTaskTypes(); static final String TASK_ID_REGEX; static final Pattern taskIdPattern; }
@Test public void testIsMap() { JobID jobId = new JobID("1234", 0); for (TaskType type : TaskType.values()) { TaskID taskId = new TaskID(jobId, type, 0); if (type == TaskType.MAP) { assertTrue("TaskID for map task did not correctly identify itself " + "as a map task", taskId.isMap()); } else { assertFalse("TaskID for " + type + " task incorrectly identified " + "itself as a map task", taskId.isMap()); } } TaskID taskId = new TaskID(); assertFalse("TaskID of default type incorrectly identified itself as a " + "map task", taskId.isMap()); }