public interface JexlExpression
This simple interface provides access to the underlying textual expression through
getSourceText()
.
An expression is different than a script - it is simply a reference to a single expression, not to multiple statements. This implies 'if','for','while','var' and blocks '{'... '}'are not allowed in expressions.
Do not create classes that implement this interface; delegate or compose instead.
Modifier and Type | Method and Description |
---|---|
Callable<Object> |
callable(JexlContext context)
Creates a Callable from this expression.
|
Object |
evaluate(JexlContext context)
Evaluates the expression with the variables contained in the
supplied
JexlContext . |
String |
getParsedText()
Recreates the source text of this expression from the internal syntactic tree.
|
String |
getSourceText()
Returns the source text of this expression.
|
Object evaluate(JexlContext context)
JexlContext
.context
- A JexlContext containing variables.JexlException
- on any errorString getSourceText()
String getParsedText()
Callable<Object> callable(JexlContext context)
This allows to submit it to an executor pool and provides support for asynchronous calls.
The interpreter will handle interruption/cancellation gracefully if needed.
context
- the contextCopyright © 2001–2022 The Apache Software Foundation. All rights reserved.