Examples of com.amazonaws.services.simpleworkflow.flow.core.Task

Package com.amazonaws.services.simpleworkflow.flow.core

Examples of com.amazonaws.services.simpleworkflow.flow.core.Task

com.amazonaws.services.simpleworkflow.flow.core.Task
Asynchronous task that is executed when all {@link Promise}s passed to its constructor are ready (null parameter is considered ready).
Should be created in the context of {@link AsyncScope#doAsync()} method, from{@link Task#doExecute()} or from {@link TryCatchFinally} do... methods.Exceptions thrown from {@link #doExecute()} are delivered asynchronously tothe wrapping {@link TryCatchFinally#doCatch(Throwable)} method or rethrownfrom {@link AsyncScope#eventLoop()} if no wrapping {@link TryCatchFinally} isfound.
Example of using {@link Task} to implement asynchronous function that sumsparameters when both of them are ready:
```
  public Promise<Integer> sum(Promise<Integer> a, Promise<Integer> b) { Settable<Integer> result = new Settable<Integer>(); new Task(a, b) { public void doExecute() { result.set(a.get() + b.get()); } }; return result; }  
```
@see AsyncScope @see TryCatchFinally @see Promise

     * @param object
     *            Object to check or <code>null</code>
     */
    static public void assertNotNull(final String message, final Promise<Object> object) {
        Assert.assertNotNull(message, object);
        new Task(object) {


            @Override
            protected void doExecute() throws Throwable {
                Assert.assertNotNull(message, object.get());
            }

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            }
        };
    }


    static public void assertNotNullWaitFor(final Object object, Promise<?>... waitFor) {
        new Task(waitFor) {


            @Override
            protected void doExecute() throws Throwable {
                Assert.assertNotNull(object);
            }

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    /**
     * Asserts that an object its content isn't null.
     */
    static public void assertNotNull(final Promise<Object> object) {
        Assert.assertNotNull(object);
        new Task(object) {


            @Override
            protected void doExecute() throws Throwable {
                Assert.assertNotNull(object.get());
            }

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            }
        };
    }


    static public void assertNullWaitFor(final String message, final Object object, Promise<?>... waitFor) {
        new Task(waitFor) {


            @Override
            protected void doExecute() throws Throwable {
                Assert.assertNull(message, object);
            }

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     * Asserts that an object is not <code>null</code> while
     * <code>object.get()</code> is <code>null</code>.
     */
    static public void assertNull(final String message, final Promise<Object> object) {
        Assert.assertNotNull(object);
        new Task(object) {


            @Override
            protected void doExecute() throws Throwable {
                Assert.assertNull(message, object.get());
            }

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            }
        };
    }


    static public void assertNullWaitFor(final Object object, Promise<?>... waitFor) {
        new Task(waitFor) {


            @Override
            protected void doExecute() throws Throwable {
                Assert.assertNull(object);
            }

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     * Asserts that an object is not <code>null</code> while
     * <code>object.get()</code> is <code>null</code>.
     */
    static public void assertNull(final Promise<Object> object) {
        Assert.assertNotNull(object);
        new Task(object) {


            @Override
            protected void doExecute() throws Throwable {
                Assert.assertNull(object.get());
            }

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            }
        };
    }


    static public void assertSameWaitFor(final String message, final Object expected, final Object actual, Promise<?>... waitFor) {
        new Task(waitFor) {


            @Override
            protected void doExecute() throws Throwable {
                Assert.assertSame(message, expected, actual);
            }

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    /**
     * Asserts that two Promises content refer to the same object. If they are
     * not, an {@link AssertionError} is thrown with the given message.
     */
    static public void assertSame(final String message, final Object expected, final Promise<Object> actual) {
        new Task(actual) {


            @Override
            protected void doExecute() throws Throwable {
                Assert.assertSame(message, expected, actual.get());
            }

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            }
        };
    }


    static public void assertSameWaitFor(final Object expected, final Object actual, Promise<?>... waitFor) {
        new Task(waitFor) {


            @Override
            protected void doExecute() throws Throwable {
                Assert.assertSame(expected, actual);
            }

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