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Java Source Code / Java Documentation » Testing » TT » U2.T2 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   U2.T2.BaseDomain

All known Subclasses:   U2.T2.BaseDomain0,
BaseDomain
abstract public class BaseDomain (Code)
A base domain provides a supply of objects. When T2's U2.T2.RndEngine test engine needs to generate an object of a class C, it first checks if it can get it from the base domain. If it can get one, say x, then the engine will create a clone of x and use the clone. If the base domain cannot supply an instance of C, then the engine continues with either looking an instance in its own U2.T2.Pool object pool , or creates a fresh instance. See also the global explanation in U2.T2U2.T2 package overview .

For cloning the engine relias on serialization, so it is essential that objects supplied by a base domain are serializable. Cloning is done to make sure that the objects in the base domain are shielded from the engine's side effect. The cloning is btw not done by the base domain itself; it is the responsibility of the test engine. So if you implement your own test engine, do keep this in mind.

Base domain essentially defines the value space over which the test engine will range. E.g. we can make it very small, large but still finite, or unbounded.

To define his own base domain, the test engineer should provide an implementation of this abstract class, and pass it to the test engine, e.g. via the U2.T2.RndEngine.RndTest RndTest API . A U2.T2.BaseDomain0 default implementation is provided.





Method Summary
abstract public  Object[]rndGET(Class C)
     Draw a random object of class C from this base domain.



Method Detail
rndGET
abstract public Object[] rndGET(Class C)(Code)
Draw a random object of class C from this base domain. If none can be found, it returns null. If an object can be found, it will be returned in return[0]. It is essential that the method only draws an object of exactly the class C. So it won't search in the subclasses.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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