Example usage for java.util ArrayDeque clear

Introduction

In this page you can find the example usage for java.util ArrayDeque clear.

Prototype

public void clear() 

Source Link

Document

Removes all of the elements from this deque.

Usage

From source file:Main.java

public static void main(String[] args) {

    ArrayDeque<Integer> deque = new ArrayDeque<Integer>(8);

    deque.add(1);//from   w ww  .  j a v  a2  s.c  om
    deque.add(2);
    deque.add(10);

    System.out.println(deque);

    // finding size of this deque
    int retval = deque.size();
    System.out.println("Deque consists of " + retval + " elements");

    deque.clear();
    retval = deque.size();
    System.out.println("Now, deque consists of " + retval + " elements");
}

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From source file:com.facebook.litho.ComponentsPools.java

@ThreadSafe(enableChecks = false)
public static void release(ArrayDeque deque) {
    if (!ComponentsConfiguration.usePooling) {
        return;//from   w  ww  . j a v  a2 s  .  co m
    }
    deque.clear();
    sArrayDequePool.release(deque);
}

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From source file:io.cloudslang.worker.execution.services.ExecutionServiceImpl.java

private void dumpBusEvents(Execution execution) throws InterruptedException {
    ArrayDeque<ScoreEvent> eventsQueue = execution.getSystemContext().getEvents();
    if (eventsQueue == null) {
        return;//from   w ww.  j  a va2  s .c o  m
    }
    for (ScoreEvent eventWrapper : eventsQueue) {
        eventBus.dispatch(eventWrapper);
    }
    eventsQueue.clear();
}

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From source file:com.espertech.esper.core.service.StatementResultServiceImpl.java

public void execute() {
    ArrayDeque<UniformPair<EventBean[]>> dispatches = lastResults.get();

    UniformPair<EventBean[]> events = EventBeanUtility.flattenList(dispatches);

    if (ExecutionPathDebugLog.isDebugEnabled && log.isDebugEnabled()) {
        ViewSupport.dumpUpdateParams(".execute", events);
    }/*from w w  w .  j  a v  a 2 s.com*/

    if ((ThreadingOption.isThreadingEnabled) && (threadingService.isOutboundThreading())) {
        threadingService.submitOutbound(new OutboundUnitRunnable(events, this));
    } else {
        processDispatch(events);
    }

    dispatches.clear();
}

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From source file:com.google.gwt.emultest.java.util.ArrayDequeTest.java

public void testElement() {
    Object o1 = new Object();
    Object o2 = new Object();

    ArrayDeque<Object> deque = new ArrayDeque<>();
    try {/* w w w.  j  a  v a 2 s. co  m*/
        deque.element();
        fail();
    } catch (NoSuchElementException expected) {
    }

    deque.add(o1);
    assertEquals(o1, deque.element());
    checkDequeSizeAndContent(deque, o1);

    deque.add(o2);
    assertEquals(o1, deque.element());
    checkDequeSizeAndContent(deque, o1, o2);

    deque.clear();
    assertTrue(deque.isEmpty());
    try {
        deque.element();
        fail();
    } catch (NoSuchElementException expected) {
    }
}

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From source file:com.google.gwt.emultest.java.util.ArrayDequeTest.java

public void testGetLast() {
    Object o1 = new Object();
    Object o2 = new Object();

    ArrayDeque<Object> deque = new ArrayDeque<>();
    try {//from w  w  w  .j ava2 s. co  m
        deque.getLast();
        fail();
    } catch (NoSuchElementException expected) {
    }

    deque.add(o1);
    assertEquals(o1, deque.getLast());
    checkDequeSizeAndContent(deque, o1);

    deque.add(o2);
    assertEquals(o2, deque.getLast());
    checkDequeSizeAndContent(deque, o1, o2);

    deque.clear();
    assertTrue(deque.isEmpty());
    try {
        deque.getLast();
        fail();
    } catch (NoSuchElementException expected) {
    }
}

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From source file:com.google.gwt.emultest.java.util.ArrayDequeTest.java

public void testGetFirst() {
    Object o1 = new Object();
    Object o2 = new Object();

    ArrayDeque<Object> deque = new ArrayDeque<>();
    try {/*from w  ww  . j a v  a 2  s  . co  m*/
        deque.getFirst();
        fail();
    } catch (NoSuchElementException expected) {
    }

    deque.add(o1);
    assertEquals(o1, deque.getFirst());
    checkDequeSizeAndContent(deque, o1);

    deque.add(o2);
    assertEquals(o1, deque.getFirst());
    checkDequeSizeAndContent(deque, o1, o2);

    deque.clear();
    assertTrue(deque.isEmpty());
    try {
        deque.getFirst();
        fail();
    } catch (NoSuchElementException expected) {
    }
}

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From source file:com.google.gwt.emultest.java.util.ArrayDequeTest.java

public void testPeek() {
    Object o1 = new Object();
    Object o2 = new Object();
    Object o3 = new Object();

    ArrayDeque<Object> deque = new ArrayDeque<>();
    assertNull(deque.peek());//from   w w  w. j  ava 2 s  . co  m

    deque.add(o1);
    assertEquals(o1, deque.peek());
    checkDequeSizeAndContent(deque, o1);

    deque.add(o2);
    assertEquals(o1, deque.peek());
    checkDequeSizeAndContent(deque, o1, o2);

    deque.addFirst(o3);
    assertEquals(o3, deque.peek());
    checkDequeSizeAndContent(deque, o3, o1, o2);

    deque.clear();
    assertTrue(deque.isEmpty());
    assertNull(deque.peek());
}

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From source file:com.google.gwt.emultest.java.util.ArrayDequeTest.java

public void testContains() {
    Object o1 = new Object();
    Object o2 = new Object();
    Object o3 = new Object();

    ArrayDeque<Object> deque = new ArrayDeque<>();
    assertFalse(deque.contains(o3));/*w  ww . jav a2s  .  c  o  m*/
    assertFalse(deque.contains(null));
    assertTrue(deque.add(o1));
    assertTrue(deque.add(o2));
    assertTrue(deque.add(o1));
    assertTrue(deque.add(o3));
    assertTrue(deque.contains(o1));
    assertTrue(deque.contains(o2));
    assertTrue(deque.contains(o3));
    assertFalse(deque.contains(null));

    deque.clear();
    assertTrue(deque.isEmpty());
    assertFalse(deque.contains(o1));
    assertFalse(deque.contains(o2));
    assertFalse(deque.contains(o3));
}

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From source file:com.google.gwt.emultest.java.util.ArrayDequeTest.java

public void testPeekLast() {
    Object o1 = new Object();
    Object o2 = new Object();
    Object o3 = new Object();

    ArrayDeque<Object> deque = new ArrayDeque<>();
    assertNull(deque.peekLast());//from   ww w.  j av  a2  s  .c om

    deque.add(o1);
    assertEquals(o1, deque.peekLast());
    checkDequeSizeAndContent(deque, o1);

    deque.add(o2);
    assertEquals(o2, deque.peekLast());
    checkDequeSizeAndContent(deque, o1, o2);

    deque.addFirst(o3);
    assertEquals(o2, deque.peekLast());
    checkDequeSizeAndContent(deque, o3, o1, o2);

    deque.clear();
    assertTrue(deque.isEmpty());
    assertNull(deque.peekLast());
}

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