org.jnetstream.filter
Interface FilterExpression<C>

All Known Implementing Classes:

PcapDebugFilter, PcapFilter

public interface FilterExpression<C>

A filter expression interface that can access the abstract syntax tree of the parsed expression in whatever syntax it was originally supplied.

Author:

Mark Bednarczyk, Sly Technologies, Inc.

Nested Class Summary

static class

FilterExpression.FilterExpressionType

Method Summary

C	compile(FilterTarget target) Compiles the current expression for target and returns the compiled result
java.lang.String	getExpression() Gets the actual expression in form of a string that needs to be compiled or interpreted
FilterExpression.FilterExpressionType	getExpressionType() Returns the syntax in a form of enum constant that the expression string is in.

Method Detail

getExpressionType

FilterExpression.FilterExpressionType getExpressionType()

Returns the syntax in a form of enum constant that the expression string is in.

Returns:

name constant of the syntax of this filter expression

getExpression

java.lang.String getExpression()

Gets the actual expression in form of a string that needs to be compiled or interpreted

Returns:

the filter expression as a string

compile

C compile(FilterTarget target)
          throws FilterSyntaxError,
                 FilterNotFoundException

Compiles the current expression for target and returns the compiled result

Parameters:

target - target for which to compile the expression

Returns:

result of the compilation

Throws:

FilterSyntaxError - any Syntax errors generated during the expression

FilterNotFoundException