Example usage for java.lang.ref Reference get

Introduction

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

Prototype

@HotSpotIntrinsicCandidate
public T get() 

Source Link

Document

Returns this reference object's referent.

Usage

From source file:javadz.beanutils.MethodUtils.java

/**
 * Return the method from the cache, if present.
 *
 * @param md The method descriptor//from   www  . j a  v  a2  s . c o  m
 * @return The cached method
 */
private static Method getCachedMethod(MethodDescriptor md) {
    if (CACHE_METHODS) {
        Reference methodRef = (Reference) cache.get(md);
        if (methodRef != null) {
            return (Method) methodRef.get();
        }
    }
    return null;
}

---

From source file:de.micromata.genome.util.event.SimpleEventClassRegistry.java

/**
 * Gets the listener.//  w ww.ja v  a2s  .c  om
 * 
 * @param event the event
 * @return the listener
 */
List<Class<? extends MgcEventListener<?>>> getListener(MgcEvent event) {
    List<Class<? extends MgcEventListener<?>>> ret = new ArrayList<>();
    for (Map.Entry<Class<? extends MgcEvent>, List<Reference<Class<? extends MgcEventListener<?>>>>> me : listenerMap
            .entrySet()) {
        if (me.getKey().isAssignableFrom(event.getClass()) == true) {
            for (Reference<Class<? extends MgcEventListener<?>>> ref : me.getValue()) {
                Class<? extends MgcEventListener<?>> listcls = ref.get();
                if (listcls != null) {
                    ret.add(listcls);
                }
            }
        }
    }
    return ret;
}

---

From source file:com.slytechs.utils.memory.Malloc.java

public void free(ByteBuffer buffer) {
    for (Reference<? extends Buffer> r : allocated.keySet()) {
        if (r.get() == buffer) {
            free(allocated.remove(r));//from  w  ww. j ava2 s.  c o m
            break;
        }
    }
}

---

From source file:ReferenceValueMap.java

/**
 * Accessor for the values from the Map.
 * @return The Values./*www  .  j ava 2 s.c  o m*/
 **/
public Collection values() {
    reap();

    Collection c = map.values();
    Iterator i = c.iterator();
    ArrayList l = new ArrayList(c.size());

    while (i.hasNext()) {
        Reference ref = (Reference) i.next();
        Object obj = ref.get();

        if (obj != null) {
            l.add(obj);
        }
    }

    return Collections.unmodifiableList(l);
}

---

From source file:ReferenceValueMap.java

/**
 * Accessor for whether the Map contains the specified value.
 * @param obj The value/*from w  w  w.  ja  v a2  s .c  om*/
 * @return Whether the Map contains the value.
 **/
public boolean containsValue(Object obj) {
    reap();

    if (obj != null) {
        Iterator i = map.values().iterator();

        while (i.hasNext()) {
            Reference ref = (Reference) i.next();

            if (obj.equals(ref.get())) {
                return true;
            }
        }
    }

    return false;
}

---

From source file:ReferenceValueMap.java

/**
 * Accessor for the entry set.// w  w w . ja v  a 2  s .  c o m
 * @return The Set.
 **/
public Set entrySet() {
    reap();

    Set s = map.entrySet();
    Iterator i = s.iterator();
    HashMap m = new HashMap(s.size());

    while (i.hasNext()) {
        Map.Entry entry = (Map.Entry) i.next();
        Reference ref = (Reference) entry.getValue();
        Object obj = ref.get();

        if (obj != null) {
            m.put(entry.getKey(), obj);
        }
    }

    return Collections.unmodifiableSet(m.entrySet());
}

---

From source file:ReferenceValueMap.java

/**
 * Method to get a value for a key./*from  w w  w.j  av a2  s  .  c  om*/
 * @param key The Key
 * @return The Value
 **/
public Object get(Object key) {
    reap();
    Reference ref = (Reference) map.get(key);

    Object value = ref == null ? null : ref.get();

    return value;
}

---

From source file:WeakReferenceList.java

/**
 * Returns the child stored at the given index. If the child has been garbage collected, it gets restored using the
 * restoreChild function.//from  w w w .j ava2s .  c o m
 *
 * @param index the index.
 * @return the object.
 */
public Object get(final int index) {
    if (isMaster(index)) {
        return master;
    } else {
        final Reference ref = childs[getChildPos(index)];
        if (ref == null) {
            throw new IllegalStateException("State: " + index);
        }
        Object ob = ref.get();
        if (ob == null) {
            ob = restoreChild(index);
            childs[getChildPos(index)] = createReference(ob);
        }
        return ob;
    }
}

---

From source file:com.datos.vfs.cache.SoftRefFilesCache.java

@Override
public FileObject getFile(final FileSystem fileSystem, final FileName fileName) {
    final Map<FileName, Reference<FileObject>> files = getOrCreateFilesystemCache(fileSystem);

    lock.lock();//from  w  w w.j av  a  2 s  .c o  m
    try {
        final Reference<FileObject> ref = files.get(fileName);
        if (ref == null) {
            return null;
        }

        final FileObject fo = ref.get();
        if (fo == null) {
            removeFile(fileSystem, fileName);
        }
        return fo;
    } finally {
        lock.unlock();
    }
}

---

From source file:eu.qualityontime.commons.MethodUtils.java

/**
 * Return the method from the cache, if present.
 *
 * @param md//  w ww . ja v  a 2s . c  o m
 *            The method descriptor
 * @return The cached method
 */
private static Method getCachedMethod(final MethodDescriptor md) {
    if (CACHE_METHODS) {
        final Reference<Method> methodRef = cache.get(md);
        if (methodRef != null) {
            return methodRef.get();
        }
    }
    return null;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• »