Package org.apache.commons.jexl3
Interface JexlExpression
public interface JexlExpression
Represents a single JEXL expression.
 
 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.
- Since:
- 1.0
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Method SummaryModifier and TypeMethodDescriptioncallable(JexlContext context) Creates a Callable from this expression.evaluate(JexlContext context) Evaluates the expression with the variables contained in the suppliedJexlContext.Recreates the source text of this expression from the internal syntactic tree.Returns the source text of this expression.
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Method Details- 
callableCreates a Callable from this expression.This allows to submit it to an executor pool and provides support for asynchronous calls. The interpreter will handle interruption/cancellation gracefully if needed. - Parameters:
- context- the context
- Returns:
- the callable
- Since:
- 3.1
 
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evaluateEvaluates the expression with the variables contained in the suppliedJexlContext.- Parameters:
- context- A JexlContext containing variables.
- Returns:
- The result of this evaluation
- Throws:
- JexlException- on any error
 
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getParsedTextRecreates the source text of this expression from the internal syntactic tree.- Returns:
- the source text
 
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getSourceTextReturns the source text of this expression.- Returns:
- the source text
 
 
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