Package org.apache.commons.cli

Class OptionBuilder

java.lang.Object

org.apache.commons.cli.OptionBuilder

public final class OptionBuilder
extends java.lang.Object

OptionBuilder allows the user to create Options using descriptive methods.

Details on the Builder pattern can be found at http://c2.com/cgi-bin/wiki?BuilderPattern.

Since:

1.0

Version:

$Revision: 754830 $, $Date: 2009-03-16 00:26:44 -0700 (Mon, 16 Mar 2009) $

Author:

John Keyes (john at integralsource.com)

Method Summary

Modifier and Type	Method	Description
static Option	create()	Create an Option using the current settings
static Option	create(char opt)	Create an Option using the current settings and with the specified Option char.
static Option	create(java.lang.String opt)	Create an Option using the current settings and with the specified Option char.
static OptionBuilder	hasArg()	The next Option created will require an argument value.
static OptionBuilder	hasArg(boolean hasArg)	The next Option created will require an argument value if hasArg is true.
static OptionBuilder	hasArgs()	The next Option created can have unlimited argument values.
static OptionBuilder	hasArgs(int num)	The next Option created can have num argument values.
static OptionBuilder	hasOptionalArg()	The next Option can have an optional argument.
static OptionBuilder	hasOptionalArgs()	The next Option can have an unlimited number of optional arguments.
static OptionBuilder	hasOptionalArgs(int numArgs)	The next Option can have the specified number of optional arguments.
static OptionBuilder	isRequired()	The next Option created will be required.
static OptionBuilder	isRequired(boolean newRequired)	The next Option created will be required if required is true.
static OptionBuilder	withArgName(java.lang.String name)	The next Option created will have the specified argument value name.
static OptionBuilder	withDescription(java.lang.String newDescription)	The next Option created will have the specified description
static OptionBuilder	withLongOpt(java.lang.String newLongopt)	The next Option created will have the following long option value.
static OptionBuilder	withType(java.lang.Object newType)	The next Option created will have a value that will be an instance of type.
static OptionBuilder	withValueSeparator()	The next Option created uses '=' as a means to separate argument values.
static OptionBuilder	withValueSeparator(char sep)	The next Option created uses sep as a means to separate argument values.

Methods inherited from class java.lang.Object

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

Method Detail

withLongOpt

public static OptionBuilder withLongOpt(java.lang.String newLongopt)

The next Option created will have the following long option value.

Parameters:

newLongopt - the long option value

Returns:

the OptionBuilder instance

hasArg

public static OptionBuilder hasArg()

The next Option created will require an argument value.

Returns:

the OptionBuilder instance

hasArg

public static OptionBuilder hasArg(boolean hasArg)

The next Option created will require an argument value if hasArg is true.

Parameters:

hasArg - if true then the Option has an argument value

Returns:

the OptionBuilder instance

withArgName

public static OptionBuilder withArgName(java.lang.String name)

The next Option created will have the specified argument value name.

Parameters:

name - the name for the argument value

Returns:

the OptionBuilder instance

isRequired

public static OptionBuilder isRequired()

The next Option created will be required.

Returns:

the OptionBuilder instance

withValueSeparator

public static OptionBuilder withValueSeparator(char sep)

The next Option created uses sep as a means to separate argument values. Example:

 Option opt = OptionBuilder.withValueSeparator(':')
                           .create('D');

 CommandLine line = parser.parse(args);
 String propertyName = opt.getValue(0);
 String propertyValue = opt.getValue(1);
 

Parameters:

sep - The value separator to be used for the argument values.

Returns:

the OptionBuilder instance

withValueSeparator

public static OptionBuilder withValueSeparator()

The next Option created uses '=' as a means to separate argument values. Example:

 Option opt = OptionBuilder.withValueSeparator()
                           .create('D');

 CommandLine line = parser.parse(args);
 String propertyName = opt.getValue(0);
 String propertyValue = opt.getValue(1);
 

Returns:

the OptionBuilder instance

isRequired

public static OptionBuilder isRequired(boolean newRequired)

The next Option created will be required if required is true.

Parameters:

newRequired - if true then the Option is required

Returns:

the OptionBuilder instance

hasArgs

public static OptionBuilder hasArgs()

The next Option created can have unlimited argument values.

Returns:

the OptionBuilder instance

hasArgs

public static OptionBuilder hasArgs(int num)

The next Option created can have num argument values.

Parameters:

num - the number of args that the option can have

Returns:

the OptionBuilder instance

hasOptionalArg

public static OptionBuilder hasOptionalArg()

The next Option can have an optional argument.

Returns:

the OptionBuilder instance

hasOptionalArgs

public static OptionBuilder hasOptionalArgs()

The next Option can have an unlimited number of optional arguments.

Returns:

the OptionBuilder instance

hasOptionalArgs

public static OptionBuilder hasOptionalArgs(int numArgs)

The next Option can have the specified number of optional arguments.

Parameters:

numArgs - - the maximum number of optional arguments the next Option created can have.

Returns:

the OptionBuilder instance

withType

public static OptionBuilder withType(java.lang.Object newType)

The next Option created will have a value that will be an instance of type.

Parameters:

newType - the type of the Options argument value

Returns:

the OptionBuilder instance

withDescription

public static OptionBuilder withDescription(java.lang.String newDescription)

The next Option created will have the specified description

Parameters:

newDescription - a description of the Option's purpose

Returns:

the OptionBuilder instance

create

public static Option create(char opt)
                     throws java.lang.IllegalArgumentException

Create an Option using the current settings and with the specified Option char.

Parameters:

opt - the character representation of the Option

Returns:

the Option instance

Throws:

java.lang.IllegalArgumentException - if opt is not a valid character. See Option.

create

public static Option create()
                     throws java.lang.IllegalArgumentException

Create an Option using the current settings

Returns:

the Option instance

Throws:

java.lang.IllegalArgumentException - if longOpt has not been set.

create

public static Option create(java.lang.String opt)
                     throws java.lang.IllegalArgumentException

Create an Option using the current settings and with the specified Option char.

Parameters:

opt - the java.lang.String representation of the Option

Returns:

the Option instance

Throws:

java.lang.IllegalArgumentException - if opt is not a valid character. See Option.