Package dev.cel.runtime

Class CelRuntime.Program

java.lang.Object

dev.cel.runtime.CelRuntime.Program

Enclosing interface:

CelRuntime

@Immutable
public abstract static class CelRuntime.Program
extends java.lang.Object

Creates an evaluable Program instance which is thread-safe and immutable.

Constructor Summary

Constructors

Constructor	Description
Program()

Method Summary

Modifier and Type	Method	Description
java.lang.Object	advanceEvaluation(UnknownContext context)	Advance evaluation based on the current unknown context.
java.lang.Object	eval()	Evaluate the expression without any variables.
java.lang.Object	eval(Message message)	Evaluate the expression using message fields as the source of input variables.
java.lang.Object	eval(CelVariableResolver resolver)	Evaluate a compiled program with a custom variable resolver.
java.lang.Object	eval(java.util.Map<java.lang.String,?> mapValue)	Evaluate the expression using a mapValue as the source of input variables.
java.lang.Object	trace(Message message, CelEvaluationListener listener)	Trace evaluates a compiled program using message fields as the source of input variables.
java.lang.Object	trace(CelEvaluationListener listener)	Trace evaluates a compiled program without any variables and invokes the listener as evaluation progresses through the AST.
java.lang.Object	trace(CelVariableResolver resolver, CelEvaluationListener listener)	Trace evaluates a compiled program using a custom variable resolver.
java.lang.Object	trace(java.util.Map<java.lang.String,?> mapValue, CelEvaluationListener listener)	Trace evaluates a compiled program using a mapValue as the source of input variables.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Program

public Program()

Method Detail

eval

public java.lang.Object eval()
                      throws CelEvaluationException

Evaluate the expression without any variables.

Throws:

CelEvaluationException

eval

public java.lang.Object eval(java.util.Map<java.lang.String,?> mapValue)
                      throws CelEvaluationException

Evaluate the expression using a mapValue as the source of input variables.

Throws:

CelEvaluationException

eval

public java.lang.Object eval(Message message)
                      throws CelEvaluationException

Evaluate the expression using message fields as the source of input variables.

Throws:

CelEvaluationException

eval

public java.lang.Object eval(CelVariableResolver resolver)
                      throws CelEvaluationException

Evaluate a compiled program with a custom variable resolver.

Throws:

CelEvaluationException

trace

public java.lang.Object trace(CelEvaluationListener listener)
                       throws CelEvaluationException

Trace evaluates a compiled program without any variables and invokes the listener as evaluation progresses through the AST.

Throws:

CelEvaluationException

trace

public java.lang.Object trace(java.util.Map<java.lang.String,?> mapValue,
                              CelEvaluationListener listener)
                       throws CelEvaluationException

Trace evaluates a compiled program using a mapValue as the source of input variables. The listener is invoked as evaluation progresses through the AST.

Throws:

CelEvaluationException

trace

public java.lang.Object trace(Message message,
                              CelEvaluationListener listener)
                       throws CelEvaluationException

Trace evaluates a compiled program using message fields as the source of input variables. The listener is invoked as evaluation progresses through the AST.

Throws:

CelEvaluationException

trace

public java.lang.Object trace(CelVariableResolver resolver,
                              CelEvaluationListener listener)
                       throws CelEvaluationException

Trace evaluates a compiled program using a custom variable resolver. The listener is invoked as evaluation progresses through the AST.

Throws:

CelEvaluationException

advanceEvaluation

public java.lang.Object advanceEvaluation(UnknownContext context)
                                   throws CelEvaluationException

Advance evaluation based on the current unknown context.

This represents one round of incremental evaluation and may return a final result or a CelUnknownSet.

If no unknowns are declared in the context or UnknownTracking is disabled, this is equivalent to eval.

Throws:

CelEvaluationException