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long can not be deferenced

 
Greenhorn
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Can anyone help me avoid my error.Long cannot be deferenced. OrderId must be of type long

 
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Are you sure that is the code that is causing the error? What you've posted won't compile, but for a different reason than your error.
 
Roberto Favaro
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I have a huge dao which is talking to a database.I want to check if the id exists but the .length() method is the problem as the id (type long) cannot be deferenced
 
Paul Sturrock
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Two problems:
  • long is a primitive type.
  • The type Long does not have a length() method.

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    Roberto Favaro
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    Thank you.Is there another way to write this without having to change the type
     
    Paul Sturrock
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    I dunno, its hard to understand what you are trying to do. What it looks like you might be trying to do is see if a value has been assigned to orderId and if it has been return 0. Is that right?
     
    Roberto Favaro
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    Yes......I changed my code to use a primaryKey generator to generate a unique Id and removed the need for a check.Thank you for ure help
     
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