How to use

assertOpen

method

in

org.apache.commons.pool.impl.StackObjectPool

/**
 * Sets the {@link PoolableObjectFactory factory} this pool uses
 * to create new instances. Trying to change
 * the <code>factory</code> while there are borrowed objects will
 * throw an {@link IllegalStateException}.
 *
 * @param factory the {@link PoolableObjectFactory} used to create new instances.
 * @throws IllegalStateException when the factory cannot be set at this time
 * @deprecated to be removed in pool 2.0
 */
@Deprecated
@Override
public synchronized void setFactory(PoolableObjectFactory<T> factory) throws IllegalStateException {
  assertOpen();
  if(0 < getNumActive()) {
    throw new IllegalStateException("Objects are already active");
  } else {
    clear();
    _factory = factory;
  }
}

assertOpen();
if (_factory == null) {
  throw new IllegalStateException("Cannot add objects without a factory.");

assertOpen();
T obj = null;
boolean newlyCreated = false;

/**
 * Sets the {@link PoolableObjectFactory factory} this pool uses
 * to create new instances. Trying to change
 * the <code>factory</code> while there are borrowed objects will
 * throw an {@link IllegalStateException}.
 *
 * @param factory the {@link PoolableObjectFactory} used to create new instances.
 * @throws IllegalStateException when the factory cannot be set at this time
 * @deprecated to be removed in pool 2.0
 */
@Deprecated
@Override
public synchronized void setFactory(PoolableObjectFactory<T> factory) throws IllegalStateException {
  assertOpen();
  if(0 < getNumActive()) {
    throw new IllegalStateException("Objects are already active");
  } else {
    clear();
    _factory = factory;
  }
}

/**
 * Sets the {@link PoolableObjectFactory factory} this pool uses
 * to create new instances. Trying to change
 * the <code>factory</code> while there are borrowed objects will
 * throw an {@link IllegalStateException}.
 *
 * @param factory the {@link PoolableObjectFactory} used to create new instances.
 * @throws IllegalStateException when the factory cannot be set at this time
 * @deprecated to be removed in pool 2.0
 */
@Deprecated
@Override
public synchronized void setFactory(PoolableObjectFactory<T> factory) throws IllegalStateException {
  assertOpen();
  if(0 < getNumActive()) {
    throw new IllegalStateException("Objects are already active");
  } else {
    clear();
    _factory = factory;
  }
}

/**
 * Sets the {@link PoolableObjectFactory factory} this pool uses
 * to create new instances. Trying to change
 * the <code>factory</code> while there are borrowed objects will
 * throw an {@link IllegalStateException}.
 *
 * @param factory the {@link PoolableObjectFactory} used to create new instances.
 * @throws IllegalStateException when the factory cannot be set at this time
 */
public synchronized void setFactory(PoolableObjectFactory factory) throws IllegalStateException {
  assertOpen();
  if(0 < getNumActive()) {
    throw new IllegalStateException("Objects are already active");
  } else {
    clear();
    _factory = factory;
  }
}

/**
 * Sets the {@link PoolableObjectFactory factory} this pool uses
 * to create new instances. Trying to change
 * the <code>factory</code> while there are borrowed objects will
 * throw an {@link IllegalStateException}.
 *
 * @param factory the {@link PoolableObjectFactory} used to create new instances.
 * @throws IllegalStateException when the factory cannot be set at this time
 */
public synchronized void setFactory(PoolableObjectFactory factory) throws IllegalStateException {
  assertOpen();
  if(0 < getNumActive()) {
    throw new IllegalStateException("Objects are already active");
  } else {
    clear();
    _factory = factory;
  }
}

assertOpen();
if (_factory == null) {
  throw new IllegalStateException("Cannot add objects without a factory.");

public synchronized Object borrowObject() throws Exception {
  assertOpen();
  Object obj = null;
  boolean newlyCreated = false;

public synchronized Object borrowObject() throws Exception {
  assertOpen();
  Object obj = null;
  boolean newlyCreated = false;

assertOpen();
if (_factory == null) {
  throw new IllegalStateException("Cannot add objects without a factory.");

assertOpen();
if (_factory == null) {
  throw new IllegalStateException("Cannot add objects without a factory.");

assertOpen();
if (_factory == null) {
  throw new IllegalStateException("Cannot add objects without a factory.");

assertOpen();
T obj = null;
boolean newlyCreated = false;

assertOpen();
T obj = null;
boolean newlyCreated = false;