New &create

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Hi,

Iam new to UVM and trying to understand the concepts.

Iam not very sure why we use "create " in UVM when we have the "new" already?

Can anyone help me understand the basic difference between the two & why we need "Create" in UVM?

-Thanks in advance

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[dave_345]

Create() is a factory method which construct an object. To override an object you need to construct it using create(). if you use set_type_override then before run ,factory replaces constructed object with derived object( specified in override).

if you use new() then you cant override.

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Thanks Dave_345.

If i got it right, the difference between new() & create() is object over riding?

Can anyone please help with an example or point to any reference?

-Thanks in advance

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[dave_59]

Here are some UVM examples. https://verificationacademy.com/cookbook/Factory

The factory pattern is a common Object-Oriented coding pattern. Do a search for it.

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Thanks Dave_59. Got it