Example usage for java.lang.ref SoftReference SoftReference

Introduction

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

Prototype

public SoftReference(T referent)

Source Link

Document

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

Usage

From source file:net.sf.maltcms.chromaui.project.spi.descriptors.CachingChromatogram1D.java

@Override
public Array getScanAcquisitionTime() {
    init();//from   www.j  ava  2s .c o m
    Array sat = null;
    if (satReference == null || satReference.get() == null) {
        sat = scanAcquisitionTimeVariable.getArray();
        satReference = new SoftReference<>(sat);
    } else {
        sat = satReference.get();
        if (sat == null) {
            sat = scanAcquisitionTimeVariable.getArray();
            satReference = new SoftReference<>(sat);
        }
    }
    EvalTools.notNull(sat, this);
    return sat;
}

From source file:com.androidpi.bricks.gallery.lru.cache.ImageCache.java

/**
 * Initialize the cache, providing all parameters.
 *
 * @param cacheParams The cache parameters to initialize the cache
 *//*from   www  . j ava  2 s.  co  m*/
private void init(ImageCacheParams cacheParams) {
    mCacheParams = cacheParams;

    // BEGIN_INCLUDE(init_memory_cache)
    // Set up memory cache
    if (mCacheParams.memoryCacheEnabled) {
        if (BuildConfig.DEBUG) {
            Log.d(TAG, "Memory cache created (size = " + mCacheParams.memCacheSize + ")");
        }

        // If we're running on Honeycomb or newer, create a set of reusable
        // bitmaps that can be
        // populated into the inBitmap field of BitmapFactory.Options. Note
        // that the set is
        // of SoftReferences which will actually not be very effective due
        // to the garbage
        // collector being aggressive clearing Soft/WeakReferences. A better
        // approach
        // would be to use a strongly references bitmaps, however this would
        // require some
        // balancing of memory usage between this set and the bitmap
        // LruCache. It would also
        // require knowledge of the expected size of the bitmaps. From
        // Honeycomb to JellyBean
        // the size would need to be precise, from KitKat onward the size
        // would just need to
        // be the upper bound (due to changes in how inBitmap can re-use
        // bitmaps).
        if (AppUtil.hasHoneycomb()) {
            mReusableBitmaps = Collections.synchronizedSet(new HashSet<SoftReference<Bitmap>>());
        }

        mMemoryCache = new LruCache<String, BitmapDrawable>(mCacheParams.memCacheSize) {

            /**
             * Notify the removed entry that is no longer being cached
             */
            @Override
            protected void entryRemoved(boolean evicted, String key, BitmapDrawable oldValue,
                    BitmapDrawable newValue) {
                if (RecyclingBitmapDrawable.class.isInstance(oldValue)) {
                    // The removed entry is a recycling drawable, so notify
                    // it
                    // that it has been removed from the memory cache
                    ((RecyclingBitmapDrawable) oldValue).setIsCached(false);
                } else {
                    // The removed entry is a standard BitmapDrawable

                    if (AppUtil.hasHoneycomb()) {
                        // We're running on Honeycomb or later, so add the
                        // bitmap
                        // to a SoftReference set for possible use with
                        // inBitmap later
                        mReusableBitmaps.add(new SoftReference<Bitmap>(oldValue.getBitmap()));
                    }
                }
            }

            /**
             * Measure item size in kilobytes rather than units which is
             * more practical for a bitmap cache
             */
            @Override
            protected int sizeOf(String key, BitmapDrawable value) {
                final int bitmapSize = getBitmapSize(value) / 1024;
                return bitmapSize == 0 ? 1 : bitmapSize;
            }
        };
    }
    // END_INCLUDE(init_memory_cache)

    // By default the disk cache is not initialized here as it should be
    // initialized
    // on a separate thread due to disk access.
    if (cacheParams.initDiskCacheOnCreate) {
        // Set up disk cache
        initDiskCache();
    }
}

From source file:com.silverwrist.dynamo.unistore.TextPartImpl.java

void precacheText(String txt) {
    m_text = new SoftReference(txt);

}

From source file:net.sf.maltcms.chromaui.project.spi.descriptors.CachingChromatogram1D.java

protected double[] getSatArray() {
    double[] satArray = null;
    if (satArrayReference == null || satArrayReference.get() == null) {
        satArray = (double[]) getScanAcquisitionTime().get1DJavaArray(double.class);
        satArrayReference = new SoftReference<>(satArray);
    } else {/* w  w w. j a v a  2s  .  c  om*/
        satArray = satArrayReference.get();
    }
    if (satArray == null) {
        throw new ResourceNotAvailableException("Could not retrieve scan acquisition time array!");
    }
    return satArray;
}

From source file:edu.stanford.mobisocial.dungbeetle.Helpers.java

public static Contact getContact(Context context, long contactId) {
    SoftReference<Contact> entry = g_contacts.get(contactId);
    if (entry != null) {
        Contact c = entry.get();/* ww  w .j  av a  2 s . co m*/
        if (c != null)
            return c;
    }
    Contact c = forceGetContact(context, contactId);
    g_contacts.put(contactId, new SoftReference<Contact>(c));
    return c;
}

From source file:org.kuali.coeus.propdev.impl.budget.subaward.BudgetSubAwards.java

@Override
public byte[] getSubAwardXfdFileData() {
    if (subAwardXfdFileData != null) {
        byte[] existingData = subAwardXfdFileData.get();
        if (existingData != null) {
            return existingData;
        }/*from   w w w. ja va2  s . c  om*/
    }
    //if we didn't have a softreference, grab the data from the db
    byte[] newData = getKcAttachmentDao().getData(fileDataId);
    subAwardXfdFileData = new SoftReference<byte[]>(newData);
    return newData;
}

From source file:com.ndn.menurandom.ImageDownloader.java

/**
 * Adds this bitmap to the cache.//from  w  w  w .j  a v  a  2  s  .co  m
 * @param bitmap The newly downloaded bitmap.
 */
private void addBitmapToCache(String url, Bitmap bitmap) {
    mMemoryCache.put(url, new SoftReference<Bitmap>(bitmap));
}

From source file:org.kuali.coeus.propdev.impl.budget.subaward.BudgetSubAwards.java

public void setSubAwardXfdFileData(byte[] subAwardXfdFileData) {
    if (subAwardXfdFileData == null) {
        getKcAttachmentDao().removeData(fileDataId);
        fileDataId = null;//  w w w. jav a 2 s. c  om
    } else {
        fileDataId = getKcAttachmentDao().saveData(subAwardXfdFileData, fileDataId);
    }
    this.subAwardXfdFileData = new SoftReference<byte[]>(subAwardXfdFileData);
}

From source file:net.sf.maltcms.chromaui.project.spi.descriptors.CachingChromatogram2D.java

@Override
public Array getScanAcquisitionTime() {
    init();//from  ww w.  java2 s  .  c  o  m
    Array sat = null;
    if (satReference == null || satReference.get() == null) {
        sat = scanAcquisitionTimeVariable.getArray();
        satReference = new SoftReference<>(sat);
    } else {
        sat = satReference.get();
        if (sat == null) {
            sat = scanAcquisitionTimeVariable.getArray();
            satReference = new SoftReference<>(sat);
        }
    }
    return sat;
}

From source file:org.kuali.coeus.propdev.impl.budget.subaward.BudgetSubAwards.java

@Override
public String getSubAwardXmlFileData() {
    if (subAwardXmlFileData != null) {
        return subAwardXmlFileData.get();
    }/* w ww  .j a v a  2  s  .com*/
    //if we didn't have a softreference, grab the data from the db
    byte[] newData = getKcAttachmentDao().getData(xmlDataId);

    String newString = newData != null ? new String(newData) : null;
    subAwardXmlFileData = new SoftReference<String>(newString);
    return newString;
}