org.huihoo.jfox.pool
Class ObjectFactoryImpl

java.lang.Object
  org.huihoo.jfox.pool.ObjectFactoryImpl

All Implemented Interfaces:

ObjectFactory

Direct Known Subclasses:

EJBObjectFactory, ProxyObjectFactory, ThreadObjectFactory

public class ObjectFactoryImpl

extends java.lang.Object

implements ObjectFactory

Field Summary

protected java.lang.Class

classType

Constructor Summary

ObjectFactoryImpl(java.lang.Class classType)

ObjectFactoryImpl(java.lang.String className)

Method Summary

void	destroyObject(PoolableObject object) destroy a poolabled object
boolean	equals(java.lang.Object obj) Indicates whether some other object is "equal to" this one.
java.lang.Class	getObjectClass()
int	hashCode() Returns a hash code value for the object.
PoolableObject	makeObject() create a new poolable object
boolean	validateObject(PoolableObject object) Ensures that the instance is safe to be returned by the pool

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

classType

protected java.lang.Class classType

Constructor Detail

ObjectFactoryImpl

public ObjectFactoryImpl(java.lang.Class classType)
                  throws java.lang.Exception

ObjectFactoryImpl

public ObjectFactoryImpl(java.lang.String className)
                  throws java.lang.Exception

Method Detail

getObjectClass

public java.lang.Class getObjectClass()

Specified by:

getObjectClass in interface ObjectFactory

makeObject

public PoolableObject makeObject()
                          throws java.lang.Exception

Description copied from interface: ObjectFactory

create a new poolable object

Specified by:

makeObject in interface ObjectFactory

Returns:

Throws:

java.lang.Exception

destroyObject

public void destroyObject(PoolableObject object)
                   throws java.lang.Exception

destroy a poolabled object

Specified by:

destroyObject in interface ObjectFactory

Parameters:

object -

Throws:

java.lang.Exception

validateObject

public boolean validateObject(PoolableObject object)

Description copied from interface: ObjectFactory

Ensures that the instance is safe to be returned by the pool

Specified by:

validateObject in interface ObjectFactory

Parameters:

object -

Returns:

hashCode

public int hashCode()

Description copied from class: java.lang.Object

Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by java.util.Hashtable.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the Object.equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hashtables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java^TM programming language.)

Returns:

a hash code value for this object.

See Also:

Object.equals(java.lang.Object), Hashtable

equals

public boolean equals(java.lang.Object obj)

Description copied from class: java.lang.Object

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.

Parameters:

obj - the reference object with which to compare.

Returns:

true if this object is the same as the obj argument; false otherwise.

See Also:

Object.hashCode(), Hashtable