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Significance of Flush in <jsp:include ?

 
Veena Pointi
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posted 14 years ago
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What is the significance of Flush attribute in <jsp:include

I tried following code main.jsp



Output is always same irrespective of weather flush is true or false.

Welcome to Main Page
Including Header Inside Header
End of Main Page

Can anybody please explain or give me an example where I can understand flush attribute properly?

Thanks
Veena

SCJP1.4
"Continuous effort - not strength or intelligence - is the key to unlocking our potential."
*Winston Churchill

 
Bear Bibeault
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posted 14 years ago
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What part of the the explanation in the JSP Specification was not clear to you? I think it's rather clearly worded.

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Vaib Gupta
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posted 14 years ago
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I have a very simple example here. Make two jsps, for instance DemoFlush.jsp and errorProne.jsp. DemoFlush.jsp code goes like this:

<html>
<body>
Some text here
<jsp:include page="errorProne.jsp" flush="true"/>
</body>
</html>

errorProne.jsp code is like this:

<%= 0/0%>

When you access the page DemoFlush.jsp with flush attribute set to true, you'll be able to see the "Some text here" text. However if flush is set to false, you will get an exception. So in a way before including the page, flush attribute writes the code of the included page in the response. I hope this clears some doubts...
 
Veena Pointi
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posted 14 years ago
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Yes.I understood . Explanation was very clear.Thank you very much.

SCJP1.4
"Continuous effort - not strength or intelligence - is the key to unlocking our potential."
*Winston Churchill

 
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