net.dpml.cli
Interface Group

All Superinterfaces:

Option

All Known Implementing Classes:

GroupImpl

public interface Group

extends Option

An Option representing a choice or group of Options in the form "-a|-b|-c".

Method Summary

void	appendUsage(StringBuffer buffer, Set helpSettings, Comparator comp, String separator) Appends usage information to the specified StringBuffer
int	getMaximum() Retrieves the maximum number of members acceptable for a valid Group
int	getMinimum() Retrieves the minimum number of members required for a valid Group
boolean	isRequired() Indicates whether group members must be present for the CommandLine to be valid.

Methods inherited from interface net.dpml.cli.Option

appendUsage, canProcess, canProcess, defaults, findOption, getDescription, getId, getPreferredName, getPrefixes, getTriggers, helpLines, process, validate

Method Detail

appendUsage

public void appendUsage(StringBuffer buffer,
                        Set helpSettings,
                        Comparator comp,
                        String separator)

Appends usage information to the specified StringBuffer

Parameters:

buffer - the buffer to append to

helpSettings - a set of display settings @see DisplaySetting

comp - a comparator used to sort the Options

separator - the String used to separate member Options

isRequired

public boolean isRequired()

Indicates whether group members must be present for the CommandLine to be valid.

Specified by:

isRequired in interface Option

Returns:

true iff the CommandLine will be invalid without at least one member option

See Also:

getMinimum(), getMaximum()

getMinimum

public int getMinimum()

Retrieves the minimum number of members required for a valid Group

Returns:

the minimum number of members

getMaximum

public int getMaximum()

Retrieves the maximum number of members acceptable for a valid Group

Returns:

the maximum number of members