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DrlParser - JBoss RULES 3.0.6 API 英文版文档

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org.drools.compiler
Class DrlParser

java.lang.Object
  org.drools.compiler.DrlParser

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public class DrlParser
extends java.lang.Object

This is a low level parser API. This will return textual AST representations of the DRL source, including with DSL expanders if appropriate.

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Constructor Summary
DrlParser()

 

Method Summary
java.util.List	getErrors()
boolean	hasErrors()
PackageDescr	parse(java.io.Reader reader)           Parse and build a rule package from a DRL source
PackageDescr	parse(java.io.Reader drl, java.io.Reader dsl)           Parse and build a rule package from a DRL source with a domain specific language.
PackageDescr	parse(java.lang.String text)           Parse a rule from text
PackageDescr	parse(java.lang.String source, java.io.Reader dsl)           Parse and build a rule package from a DRL source with a domain specific language.

 

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

 

Constructor Detail

DrlParser

public DrlParser()

Method Detail

parse

public PackageDescr parse(java.lang.String text)
                   throws DroolsParserException

Parse a rule from text

Throws:

DroolsParserException

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parse

public PackageDescr parse(java.io.Reader reader)
                   throws java.io.IOException,
                          DroolsParserException

Parse and build a rule package from a DRL source

Throws:

java.io.IOException

DroolsParserException

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parse

public PackageDescr parse(java.io.Reader drl,
                          java.io.Reader dsl)
                   throws DroolsParserException,
                          java.io.IOException

Parse and build a rule package from a DRL source with a domain specific language.

Throws:

DroolsParserException

java.io.IOException

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parse

public PackageDescr parse(java.lang.String source,
                          java.io.Reader dsl)
                   throws DroolsParserException

Parse and build a rule package from a DRL source with a domain specific language.

Parameters:

source - As Text.

dsl -

Returns:

Throws:

DroolsParserException

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hasErrors

public boolean hasErrors()

Returns:

true if there were parser errors.

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getErrors

public java.util.List getErrors()

Returns:

a list of ParserError's.

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