org.nhindirect.policy

Interface PolicyLexiconParser

All Known Implementing Classes:

JavaSerializedObjectLexiconPolicyParser, SimpleTextV1LexiconPolicyParser, XMLLexiconPolicyParser

public interface PolicyLexiconParser

Interface defining parsers for a PolicyLexicon. Parsers are specific to a lexicon and generate a PolicyExpression object that is fed into a policy engine Compiler.
Parser instances should be created using the PolicyLexiconParserFactory class.

Since:

1.0

Author:

Greg Meyer

Method Summary

Methods

Modifier and Type	Method and Description
PolicyExpression	parse(InputStream stream) Parsers an expression from an input stream written in the specific lexicon into a PolicyExpression object.

Method Detail

parse

PolicyExpression parse(InputStream stream)
                       throws PolicyParseException

Parsers an expression from an input stream written in the specific lexicon into a PolicyExpression object.

Parameters:

stream - An input stream containing the expression written in the specific lexicon.

Returns:

A PolicyExpression object resulting from parsing the input stream.

Throws:

PolicyParseException - Thrown in the input stream cannot be parsed into a PolicyExpression object.