List of borrowObject() Examples

Examples of borrowObject()

ch.entwine.weblounge.common.impl.site.ActionPool.borrowObject()
{@inheritDoc} @see org.apache.commons.pool.impl.GenericObjectPool#borrowObject()
org.apache.commons.pool.KeyedObjectPool.borrowObject()
Obtain an instance from my pool for the specified key. By contract, clients MUST return the borrowed object using {@link #returnObject(java.lang.Object,java.lang.Object) returnObject}, or a related method as defined in an implementation or sub-interface, using a key that is equivalent to the one used to borrow the instance in the first place. @param key the key used to obtain the object @return an instance from my pool.
org.apache.commons.pool.ObjectPool.borrowObject()
Obtain an instance from my pool. By contract, clients MUST return the borrowed instance using {@link #returnObject(java.lang.Object) returnObject}or a related method as defined in an implementation or sub-interface.
The behaviour of this method when the pool has been exhausted is not specified (although it may be specified by implementations). @return an instance from my pool.
org.apache.commons.pool.impl.GenericKeyedObjectPool.borrowObject()

Borrows an object from the keyed pool associated with the given key.

If there is an idle instance available in the pool associated with the given key, then either the most-recently returned (if {@link #getLifo() lifo} == true) or "oldest" (lifo == false)instance sitting idle in the pool will be activated and returned. If activation fails, or {@link #getTestOnBorrow() testOnBorrow} is set to true and validation fails, the instance is destroyed and thenext available instance is examined. This continues until either a valid instance is returned or there are no more idle instances available.

If there are no idle instances available in the pool associated with the given key, behavior depends on the {@link #getMaxActive() maxActive}, {@link #getMaxTotal() maxTotal}, and (if applicable) {@link #getWhenExhaustedAction() whenExhaustedAction} and {@link #getMaxWait() maxWait} properties. If thenumber of instances checked out from the pool under the given key is less than maxActive and the total number of instances in circulation (under all keys) is less than maxTotal, a new instance is created, activated and (if applicable) validated and returned to the caller.

If the associated keyed pool is exhausted (no available idle instances and no capacity to create new ones), this method will either block ( {@link #WHEN_EXHAUSTED_BLOCK}), throw a NoSuchElementException ( {@link #WHEN_EXHAUSTED_FAIL}), or grow ( {@link #WHEN_EXHAUSTED_GROW} - ignoring maxActive, maxTotal properties).The length of time that this method will block when whenExhaustedAction == WHEN_EXHAUSTED_BLOCK is determined by the {@link #getMaxWait() maxWait} property.
When the pool is exhausted, multiple calling threads may be simultaneously blocked waiting for instances to become available. As of pool 1.5, a "fairness" algorithm has been implemented to ensure that threads receive available instances in request arrival order.
@param key pool key @return object instance from the keyed pool @throws NoSuchElementException if a keyed object instance cannot be returned.
org.apache.commons.pool.impl.GenericObjectPool.borrowObject()

Borrows an object from the pool.

If there is an idle instance available in the pool, then either the most-recently returned (if {@link #getLifo() lifo} == true) or "oldest" (lifo == false) instance sitting idle in the poolwill be activated and returned. If activation fails, or {@link #getTestOnBorrow() testOnBorrow} is setto true and validation fails, the instance is destroyed and the next available instance is examined. This continues until either a valid instance is returned or there are no more idle instances available.

If there are no idle instances available in the pool, behavior depends on the {@link #getMaxActive() maxActive}and (if applicable) {@link #getWhenExhaustedAction() whenExhaustedAction} and {@link #getMaxWait() maxWait}properties. If the number of instances checked out from the pool is less than maxActive, a new instance is created, activated and (if applicable) validated and returned to the caller.

If the pool is exhausted (no available idle instances and no capacity to create new ones), this method will either block ( {@link #WHEN_EXHAUSTED_BLOCK}), throw a NoSuchElementException ( {@link #WHEN_EXHAUSTED_FAIL}), or grow ( {@link #WHEN_EXHAUSTED_GROW} - ignoring maxActive).The length of time that this method will block when whenExhaustedAction == WHEN_EXHAUSTED_BLOCK is determined by the {@link #getMaxWait() maxWait} property.
When the pool is exhausted, multiple calling threads may be simultaneously blocked waiting for instances to become available. As of pool 1.5, a "fairness" algorithm has been implemented to ensure that threads receive available instances in request arrival order.
@return object instance @throws NoSuchElementException if an instance cannot be returned
org.apache.commons.pool.impl.StackObjectPool.borrowObject()
org.datanucleus.store.rdbms.datasource.dbcp.pool.ObjectPool.borrowObject()
Obtains an instance from this pool.
Instances returned from this method will have been either newly created with {@link PoolableObjectFactory#makeObject makeObject} or will be a previously idle object andhave been activated with {@link PoolableObjectFactory#activateObject activateObject} andthen validated with {@link PoolableObjectFactory#validateObject validateObject}.

By contract, clients must return the borrowed instance using {@link #returnObject returnObject}, {@link #invalidateObject invalidateObject}, or a related method as defined in an implementation or sub-interface.

The behaviour of this method when the pool has been exhausted is not strictly specified (although it may be specified by implementations). Older versions of this method would return null to indicate exhaustion, newer versions are encouraged to throw a {@link NoSuchElementException}.
@return an instance from this pool. @throws IllegalStateException after {@link #close close} has been called on this pool. @throws Exception when {@link PoolableObjectFactory#makeObject makeObject} throws an exception. @throws NoSuchElementException when the pool is exhausted and cannot or will not return another instance.
org.exist.util.serializer.SerializerPool.borrowObject()

Examples of org.apache.commons.pool.KeyedObjectPool.borrowObject()

            for(int i=0;i<10;i++) {
                pool.returnObject("X",borrowed[i]);
            }
        }
        pool.invalidateObject("X",pool.borrowObject("X"));
        pool.invalidateObject("X",pool.borrowObject("X"));
        pool.clear("X");        
        pool.clear();        
    }
    
    public void testVariousConstructors() throws Exception {

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Examples of org.apache.commons.pool.KeyedObjectPool.borrowObject()

    }
        
    public void testBorrowFromEmptyPoolWithNullFactory() throws Exception {
        KeyedObjectPool pool = new StackKeyedObjectPool();
        try {
            pool.borrowObject("x");
            fail("Expected NoSuchElementException");
        } catch(NoSuchElementException e) {
            // expected
        }
    }

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Examples of org.apache.commons.pool.KeyedObjectPool.borrowObject()

    }
    
    public void testSetFactory() throws Exception {
        KeyedObjectPool pool = new StackKeyedObjectPool();
        try {
            pool.borrowObject("x");
            fail("Expected NoSuchElementException");
        } catch(NoSuchElementException e) {
            // expected
        }
        pool.setFactory(new SimpleFactory());

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Examples of org.apache.commons.pool.KeyedObjectPool.borrowObject()

            fail("Expected NoSuchElementException");
        } catch(NoSuchElementException e) {
            // expected
        }
        pool.setFactory(new SimpleFactory());
        Object obj = pool.borrowObject("x");
        assertNotNull(obj);
        pool.returnObject("x",obj);
    }


    public void testCantResetFactoryWithActiveObjects() throws Exception {

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Examples of org.apache.commons.pool.KeyedObjectPool.borrowObject()

    }


    public void testCantResetFactoryWithActiveObjects() throws Exception {
        KeyedObjectPool pool = new StackKeyedObjectPool();
        pool.setFactory(new SimpleFactory());
        Object obj = pool.borrowObject("x");
        assertNotNull(obj);


        try {
            pool.setFactory(new SimpleFactory());
            fail("Expected IllegalStateException");

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Examples of org.apache.commons.pool.KeyedObjectPool.borrowObject()

    
    public void testCanResetFactoryWithoutActiveObjects() throws Exception {
        KeyedObjectPool pool = new StackKeyedObjectPool();
        {
            pool.setFactory(new SimpleFactory());
            Object obj = pool.borrowObject("x");        
            assertNotNull(obj);
            pool.returnObject("x",obj);
        }
        {
            pool.setFactory(new SimpleFactory());

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Examples of org.apache.commons.pool.KeyedObjectPool.borrowObject()

            assertNotNull(obj);
            pool.returnObject("x",obj);
        }
        {
            pool.setFactory(new SimpleFactory());
            Object obj = pool.borrowObject("x");        
            assertNotNull(obj);
            pool.returnObject("x",obj);
        }
    }

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Examples of org.apache.commons.pool.KeyedObjectPool.borrowObject()

            }
        );


        Object[] obj = new Object[10];
        for(int i=0;i<10;i++) {
            obj[i] = pool.borrowObject("key");
        }
        for(int i=0;i<10;i++) {
            pool.returnObject("key",obj[i]);
        }
        assertEquals(3,pool.getNumIdle("key"));

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Examples of org.apache.commons.pool.KeyedObjectPool.borrowObject()


   private Transport borrowTransportFromPool(SocketAddress server) {
      // The borrowObject() call could take a long time, so we hold the lock only until we get the connection pool reference
      KeyedObjectPool pool = getConnectionPool();
      try {
         return (Transport) pool.borrowObject(server);
      } catch (Exception e) {
         String message = "Could not fetch transport";
         log.couldNotFetchTransport(e);
         throw new TransportException(message, e);
      } finally {

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Examples of org.apache.commons.pool.KeyedObjectPool.borrowObject()


   private Transport borrowTransportFromPool(SocketAddress server) {
      // The borrowObject() call could take a long time, so we hold the lock only until we get the connection pool reference
      KeyedObjectPool pool = getConnectionPool();
      try {
         return (Transport) pool.borrowObject(server);
      } catch (Exception e) {
         String message = "Could not fetch transport";
         log.couldNotFetchTransport(e);
         throw new TransportException(message, e);
      } finally {

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