Returns an expression whose value is
oldInstance
.
This method is used to characterize the constructor
or factory method that should be used to create the given object.
For example, the
instantiate
method of the persistence
delegate for the
Field
class could be defined as follows:
Field f = (Field)oldInstance;
return new Expression(f, f.getDeclaringClass(), "getField", new Object[]{f.getName()});
Note that we declare the value of the returned expression so that
the value of the expression (as returned by
getValue
)
will be identical to
oldInstance
.
Returns:
An expression whose value is
oldInstance
.
Parameters:
-
oldInstance - The instance that will be created by this expression.
-
out - The stream to which this expression will be written.