Narrowing Local Component

Greenhorn

Posts: 10

posted 19 years ago

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Object obj = ctx.getEJBLocalObject();
MyComponent comp = (MyComponent)PortableRemoteObject.narrow(obj, MyComponent.class);

1. What will happen if I narrow the Local Component instead of casting it?

2. Is it allowed?

3. Are there going to be any Exceptions?

Thank you guys,

Dimiter
(SJP, SCWCD)
[ August 21, 2004: Message edited by: Dimiter Stoilov ]

Nicholas Cheung

Ranch Hand

Posts: 4982

posted 19 years ago

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1. What will happen if I narrow the Local Component instead of casting it?

It will be the same as you use casting.

2. Is it allowed?

Yes, but in fact you dont need to do so, as for local components, we already know what it is.

3. Are there going to be any Exceptions?

No if you pass in the correct Class for narrowing. Yes if you passing in the wrong Class for narrowing.

Nick

SCJP 1.2, OCP 9i DBA, SCWCD 1.3, SCJP 1.4 (SAI), SCJD 1.4, SCWCD 1.4 (Beta), ICED (IBM 287, IBM 484, IBM 486), SCMAD 1.0 (Beta), SCBCD 1.3, ICSD (IBM 288), ICDBA (IBM 700, IBM 701), SCDJWS, ICSD (IBM 348), OCP 10g DBA (Beta), SCJP 5.0 (Beta), SCJA 1.0 (Beta), MCP(70-270), SCBCD 5.0 (Beta), SCJP 6.0, SCEA for JEE5 (in progress)

Dimiter Stoilov

Greenhorn

Posts: 10

posted 19 years ago

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Thank you Nicholas

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