what is the difference between return this vs return new Class()

Question

recently i was going through an article in hibernate.I have seen this please enlighten me on this

public Criteria createCriteria(String associationPath, String alias, int joinType) {
    return new Subcriteria( this, associationPath, alias, joinType );//return new object
}


public Criteria createAlias(String associationPath, String alias, int joinType) {
    new Subcriteria( this, associationPath, alias, joinType );
    return this;//return this
}

i have got little bit of answer but not understood properly. http://stackoverflow.com/questions/18062286/difference-between-creatcriteria-and-createalias — ThinkTank, Jun 08 '16 at 06:34

score 1 · Answer 1 · edited May 23 '17 at 12:31

1

First example will return a new instance of the type Subcriteria. Second one will return current instance. See about this keyword in java here and discussion is here.

So the difference is simple.

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Existing (current)

The link you provided in the comment clearly answers the question. Have a look again.

edited May 23 '17 at 12:31

Community

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answered Jun 08 '16 at 06:41

Nabin

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Thanks for link @nabin – ThinkTank Aug 07 '17 at 07:53

what is the difference between return this vs return new Class()

1 Answers1