Example usage for java.lang.ref WeakReference WeakReference

Introduction

In this page you can find the example usage for java.lang.ref WeakReference WeakReference.

Prototype

public WeakReference(T referent)

Source Link

Document

Creates a new weak reference that refers to the given object.

Usage

From source file:CheckThreadViolationRepaintManager.java

private void checkThreadViolations(JComponent c) {
    if (!SwingUtilities.isEventDispatchThread() && (completeCheck || c.isShowing())) {
        boolean repaint = false;
        boolean fromSwing = false;
        boolean imageUpdate = false;
        StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
        for (StackTraceElement st : stackTrace) {
            if (repaint && st.getClassName().startsWith("javax.swing.")) {
                fromSwing = true;/* www . j  a va2  s. c om*/
            }
            if (repaint && "imageUpdate".equals(st.getMethodName())) {
                imageUpdate = true;
            }
            if ("repaint".equals(st.getMethodName())) {
                repaint = true;
                fromSwing = false;
            }
        }
        if (imageUpdate) {
            // assuming it is java.awt.image.ImageObserver.imageUpdate(...)
            // image was asynchronously updated, that's ok
            return;
        }
        if (repaint && !fromSwing) {
            // no problems here, since repaint() is thread safe
            return;
        }
        // ignore the last processed component
        if (lastComponent != null && c == lastComponent.get()) {
            return;
        }
        lastComponent = new WeakReference<JComponent>(c);
        violationFound(c, stackTrace);
    }
}

From source file:com.andrew.apollo.adapters.PagerAdapter.java

/**
 * {@inheritDoc}/*  w ww .j  av  a2  s  . com*/
 */
@Override
public Object instantiateItem(final ViewGroup container, final int position) {
    final Fragment mFragment = (Fragment) super.instantiateItem(container, position);
    final WeakReference<Fragment> mWeakFragment = mFragmentArray.get(position);
    if (mWeakFragment != null) {
        mWeakFragment.clear();
    }
    mFragmentArray.put(position, new WeakReference<Fragment>(mFragment));
    return mFragment;
}

From source file:com.digium.respokesdk.RespokeGroup.java

/**
 *  The constructor for this class/* www  .  ja v a  2 s.c  o m*/
 *
 *  @param newGroupID  The ID for this group
 *  @param channel     The signaling channel managing communications with this group
 *  @param newClient   The client to which this group instance belongs
 *  @param isJoined    Whether the group has already been joined
 */
public RespokeGroup(String newGroupID, RespokeSignalingChannel channel, RespokeClient newClient,
        Boolean isJoined) {
    groupID = newGroupID;
    signalingChannel = channel;
    clientReference = new WeakReference<RespokeClient>(newClient);
    members = new ArrayList<RespokeConnection>();
    joined = isJoined;
}

From source file:com.socialize.provider.BaseSocializeProvider.java

@Override
public void init(Context context) {
    this.context = new WeakReference<Context>(context);
}

From source file:com.joyent.manta.http.PoolStatsMBean.java

/**
 * Creates a new MBean instance backed by the passed connection manager.
 * @param connectionManager instance to get statistics from
 *///ww w  .  j a  v  a2s .c  o  m
PoolStatsMBean(final PoolingHttpClientConnectionManager connectionManager) {
    this.connectionManagerRef = new WeakReference<>(connectionManager);
    updatePoolStats();
}

From source file:ch.entwine.weblounge.common.impl.content.AbstractResourceReaderImpl.java

/**
 * Creates a new resource reader reader that will parse the XML data and store
 * it in the <code>Resource</code> object that is returned by the
 * {@link #read} method./*w w  w. j av a  2 s.  c o  m*/
 * 
 * @param rootTag
 *          name of the root tag
 * @throws ParserConfigurationException
 *           if the SAX parser setup failed
 * @throws SAXException
 *           if an error occurs while parsing
 */
public AbstractResourceReaderImpl(String rootTag) throws ParserConfigurationException, SAXException {
    if (rootTag == null)
        throw new IllegalArgumentException("Root tag name must not be null");
    this.rootTag = rootTag.toLowerCase();
    parserRef = new WeakReference<SAXParser>(parserFactory.newSAXParser());
}

From source file:com.achep.acdisplay.services.media.MediaController2KitKat.java

/**
 * {@inheritDoc}//from  w  ww .jav a2 s . co  m
 */
protected MediaController2KitKat(@NonNull Activity activity) {
    super(activity);

    SparseIntArray cachedStateSparse = sStateSparse.get();
    if (cachedStateSparse == null) {
        mStateSparse = generatePlaybackCompatSparse();
        sStateSparse = new WeakReference<>(mStateSparse);
    } else {
        mStateSparse = cachedStateSparse;
    }
}

From source file:hudson.plugins.robot.RobotBuildAction.java

/**
 * Loads new data to {@link RobotResult}.
 *//*from  w  ww. j a  va2s  .co  m*/
public synchronized void setResult(RobotResult result, BuildListener listener) {
    result.tally(this);
    try {
        getDataFile().write(result);
    } catch (IOException e) {
        e.printStackTrace(listener.fatalError("Failed to save the Robot test result"));
    }

    this.resultReference = new WeakReference<RobotResult>(result);
}

From source file:ch.entwine.weblounge.common.impl.content.page.PageReader.java

/**
 * Creates a new page data reader that will parse the XML data and store it in
 * the <code>Page</code> object that is returned by the {@link #read()} method.
 * // w w  w.  j  a va2  s .c om
 * @throws ParserConfigurationException
 *           if the SAX parser setup failed
 * @throws SAXException
 *           if an error occurs while parsing
 */
public PageReader() throws ParserConfigurationException, SAXException {
    parserRef = new WeakReference<SAXParser>(parserFactory.newSAXParser());
    pageletReader = new PageletReader();
}

From source file:org.universAAL.android.proxies.ServiceCalleeProxy.java

/**
 * Constructor for the proxy./* w  ww  .  ja v  a  2s. co  m*/
 * 
 * @param parcel
 *            The parcelable from of the grounding of the metadata.
 * @param context
 *            The Android context.
 */
public ServiceCalleeProxy(GroundingParcel parcel, Context context) {
    super(AndroidContext.THE_CONTEXT, prepareProfiles(parcel.getGrounding()));
    contextRef = new WeakReference<Context>(context);
    action = parcel.getAction();
    category = parcel.getCategory();
    replyAction = parcel.getReplyAction();
    replyCategory = parcel.getReplyCategory();
    grounding = prepareGrounding(parcel.getGrounding());
    fillTableIN(parcel.getLengthIN(), parcel.getKeysIN(), parcel.getValuesIN());
    fillTableOUT(parcel.getLengthOUT(), parcel.getKeysOUT(), parcel.getValuesOUT());
    ServiceProfile[] sps = prepareProfiles(parcel.getGrounding());
    spURI = sps[0].getURI();
    // This is for RAPI. 
    sync();
}