org.drools.semantics.java
Class JavaExprAnalyzer

java.lang.Object
  org.drools.semantics.java.JavaExprAnalyzer

public class JavaExprAnalyzer
extends java.lang.Object

Expression analyzer.

Constructor Summary

JavaExprAnalyzer()
Construct.

Method Summary

java.util.List

analyze(java.lang.String expr, java.util.List availDecls) Analyze an expression.

Methods inherited from class java.lang.Object

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

Constructor Detail

JavaExprAnalyzer

public JavaExprAnalyzer()

Construct.

Method Detail

analyze

public java.util.List analyze(java.lang.String expr,
                              java.util.List availDecls)
                       throws TokenStreamException,
                              RecognitionException,
                              MissingDeclarationException

Analyze an expression.

Parameters:

expr - The expression to analyze.

availDecls - Total set of declarations available.

Returns:

The Set of declarations used by the expression.

Throws:

TokenStreamException - If an error occurs in the lexer.

RecognitionException - If an error occurs in the parser.

MissingDeclarationException - If the expression requires a declaration not present in the available declarations.