viper.filters
Interface Filterable

All Known Implementing Classes:

Attribute, FrameSpan

public interface Filterable

This interface is used to allow the FILTER to work on Attributes and the FrameSpan.

Nested Class Summary

static interface

Filterable.Rule This object tests a given value against a rule.

Method Summary

Filterable.Rule	convertRule(java.lang.String unparsedRule, java.util.List unparsedValues, ErrorWriter err) This converts a string into a rule, writing out errors in the format to err.
boolean	isValidRule(java.lang.String ruleName) Tell if a name is a valid rule or not
boolean	passes(Filterable.Rule rule) Tests to see if the value passes the given rule.

Method Detail

convertRule

public Filterable.Rule convertRule(java.lang.String unparsedRule,
                                   java.util.List unparsedValues,
                                   ErrorWriter err)
                            throws BadDataException

This converts a string into a rule, writing out errors in the format to err.

Parameters:

unparsedRule - A string containing a single rule.

unparsedValues - A string containing values.

err - A place to log the errors.

Returns:

A List containing a rule (String) and value (Object) pair.

Throws:

BadDataException

isValidRule

public boolean isValidRule(java.lang.String ruleName)

Tell if a name is a valid rule or not

Parameters:

ruleName - the name of the rule

Returns:

true if the rule is valid.

passes

public boolean passes(Filterable.Rule rule)

Tests to see if the value passes the given rule.

Parameters:

rule - the rule to check this value against

Returns:

if this value is good according to the given rule