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java.lang.Objectorg.apache.pivot.util.concurrent.Task<Void>
org.apache.pivot.util.concurrent.TaskSequence
public class TaskSequence
Task that runs a sequence of tasks in series and notifies listeners
when all tasks are complete.
| Nested Class Summary |
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| Nested classes/interfaces inherited from interface org.apache.pivot.collections.Sequence |
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Sequence.Tree<T> |
| Field Summary |
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| Fields inherited from class org.apache.pivot.util.concurrent.Task |
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abort, DEFAULT_EXECUTOR_SERVICE, timeout |
| Constructor Summary | |
|---|---|
TaskSequence()
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TaskSequence(ExecutorService executorService)
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| Method Summary | |
|---|---|
int |
add(Task<?> task)
Adds an item to the sequence. |
Void |
execute()
Synchronously executes the task. |
Task<?> |
get(int index)
Retrieves the item at the given index. |
int |
getLength()
Returns the length of the sequence. |
int |
indexOf(Task<?> task)
Returns the index of an item in the sequence. |
void |
insert(Task<?> task,
int index)
Inserts an item into the sequence at a specific index. |
Iterator<Task<?>> |
iterator()
|
Sequence<Task<?>> |
remove(int index,
int count)
Removes one or more items from the sequence. |
int |
remove(Task<?> task)
Removes the first occurrence of the given item from the sequence. |
Task<?> |
update(int index,
Task<?> task)
Updates the item at the given index. |
| Methods inherited from class org.apache.pivot.util.concurrent.Task |
|---|
abort, execute, execute, getExecutorService, getFault, getResult, getTimeout, isPending, setTimeout |
| Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public TaskSequence()
public TaskSequence(ExecutorService executorService)
| Method Detail |
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public Void execute()
throws TaskExecutionException
Task
execute in class Task<Void>TaskExecutionException - If an error occurs while executing the task.public int add(Task<?> task)
Sequence
add in interface Sequence<Task<?>>task - The item to be added to the sequence.
public void insert(Task<?> task,
int index)
Sequence
insert in interface Sequence<Task<?>>task - The item to be added to the sequence.index - The index at which the item should be inserted. Must be a value between
0 and getLength().
public Task<?> update(int index,
Task<?> task)
Sequence
update in interface Sequence<Task<?>>index - The index of the item to update.task - The item that will replace any existing value at the given index.
public int remove(Task<?> task)
Sequence
remove in interface Sequence<Task<?>>task - The item to remove.
Sequence.remove(int, int)
public Sequence<Task<?>> remove(int index,
int count)
Sequence
remove in interface Sequence<Task<?>>index - The starting index to remove.count - The number of items to remove, beginning with index.
public Task<?> get(int index)
Sequence
get in interface Sequence<Task<?>>index - The index of the item to retrieve.public int indexOf(Task<?> task)
Sequence
indexOf in interface Sequence<Task<?>>task - The item to locate.
public int getLength()
Sequence
getLength in interface Sequence<Task<?>>public Iterator<Task<?>> iterator()
iterator in interface Iterable<Task<?>>
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