Package org.drools.core.spi

Interface PredicateExpression

All Superinterfaces:

Invoker, RuleComponent

All Known Subinterfaces:

PredicateStub

All Known Implementing Classes:

PredicateExpression.SafePredicateExpression

public interface PredicateExpression
extends Invoker

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	PredicateExpression.SafePredicateExpression

Method Summary

Modifier and Type	Method	Description
Object	createContext()
boolean	evaluate(InternalFactHandle handle, Tuple tuple, Declaration[] previousDeclarations, Declaration[] localDeclarations, WorkingMemory workingMemory, Object context)
static boolean	isCompiledInvoker(PredicateExpression expression)

Method Detail

createContext

Object createContext()

evaluate

boolean evaluate(InternalFactHandle handle,
                 Tuple tuple,
                 Declaration[] previousDeclarations,
                 Declaration[] localDeclarations,
                 WorkingMemory workingMemory,
                 Object context)
          throws Exception

Throws:

Exception

isCompiledInvoker

static boolean isCompiledInvoker(PredicateExpression expression)