Package for a Java Bean
This blog entry is for answering the question posted by Medha in the blog entry "Java Questions".
Question: Why do we need to declare a specific package name for all the beans we intend to use in JSP pages?
Answer: Even though the bean specification doesn't require it, I recommend that you always declare a specific package name for all beans you intend to use in JSP pages, via the Java package statement.
If you don't, you have to use the JSP import directive to import the bean class (with the page directive) in every JSP page that uses it. The page implementation class may use a vendor-dependent package name; since Java assumes that a class name without a package qualifier refers to a class in the same package as the class that uses it (or to a package declared by an import statement), the compiler looks for the bean class in the wrong package unless you explicitly import it.
I hope this clears your doubt, Medha.
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Question: Why do we need to declare a specific package name for all the beans we intend to use in JSP pages?
Answer: Even though the bean specification doesn't require it, I recommend that you always declare a specific package name for all beans you intend to use in JSP pages, via the Java package statement.
If you don't, you have to use the JSP import directive to import the bean class (with the page directive) in every JSP page that uses it. The page implementation class may use a vendor-dependent package name; since Java assumes that a class name without a package qualifier refers to a class in the same package as the class that uses it (or to a package declared by an import statement), the compiler looks for the bean class in the wrong package unless you explicitly import it.
I hope this clears your doubt, Medha.
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posted by Unknown at 3:14 PM
Disclaimer: Because I value your thoughtful opinions, I encourage you to add a comment to this discussion. Don't be offended if I edit your comments for clarity or to keep out questionable matters, however, and I may even delete off-topic comments.
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