Developer Transformation Guide

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JExpression Class

Contains methods to create and invoke an expression, return the value of an expression, and check the return datatype.

The following table lists the methods in the JExpression class:

Method Name	Description
invoke	Invokes an expression.
getResultDataType	Returns the datatype of the expression result.
getResultMetadata	Returns the metadata of the expression result.
isResultNull	Checks the result value of an expression result.
getInt	Returns the value of an expression result as an Integer datatype.
getDouble	Returns the value of an expression result as a Double datatype.
getStringBuffer	Returns the value of an expression result as a String datatype.
getBytes	Returns the value of an expression result as a byte[] datatype.