FromBuilder (Drools 4.0.0.11754MR2 API) - JBoss RULES 4.0.0.11754MR2 API 英文版文档

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org.drools.reteoo.builder
Class FromBuilder

java.lang.Object
  org.drools.reteoo.builder.FromBuilder

All Implemented Interfaces:: ReteooComponentBuilder

public class FromBuilder
extends Object
implements ReteooComponentBuilder
extends Object
implements ReteooComponentBuilder

Author:: etirelli

Constructor Summary

FromBuilder()


Method Summary

void build(BuildContext context, BuildUtils utils, RuleConditionElement rce)
          Builds and attach if needed the given RuleConditionalElement

boolean requiresLeftActivation(BuildUtils utils, RuleConditionElement rce)
          A boolean function that indicates if the builder requires a previous left (tuple) activation in order to corretly build the given component.

Methods inherited from class java.lang.Object

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

Constructor Summary
`FromBuilder()`

Method Summary
`void`	`build(BuildContext context, BuildUtils utils, RuleConditionElement rce)` Builds and attach if needed the given RuleConditionalElement
`boolean`	`requiresLeftActivation(BuildUtils utils, RuleConditionElement rce)` A boolean function that indicates if the builder requires a previous left (tuple) activation in order to corretly build the given component.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

FromBuilder

public FromBuilder()

Method Detail

build

public void build(BuildContext context,
                  BuildUtils utils,
                  RuleConditionElement rce)

Description copied from interface: ReteooComponentBuilder

Builds and attach if needed the given RuleConditionalElement

Specified by:: build in interface ReteooComponentBuilder

Parameters:: context - current build context

requiresLeftActivation

public boolean requiresLeftActivation(BuildUtils utils,
                                      RuleConditionElement rce)

Description copied from interface: ReteooComponentBuilder

A boolean function that indicates if the builder requires a previous left (tuple) activation in order to corretly build the given component. In other words, if it returns true and no previous TupleSource is already created, an InitialFact pattern must be added with appropriate left input adapter for the network to be correctly built. For instance, NOT / EXISTS / ACCUMULATE are examples of builders that must return true for this method, while PATTERN must return false.