All Classes

Class Description
AutoComplete
Stand-alone tool that generates bash auto-complete scripts for picocli-based command line applications.
AutoComplete.GenerateCompletion
Command that generates a Bash/ZSH completion script for its top-level command.
CommandLine
CommandLine interpreter that uses reflection to initialize an annotated user object with values obtained from the command line arguments.
CommandLine.AbstractHandler<R,​T extends CommandLine.AbstractHandler<R,​T>> Deprecated.
CommandLine.AbstractParseResultHandler<R> Deprecated.
CommandLine.ArgGroup
A Command may define one or more ArgGroups: a group of options, positional parameters or a mixture of the two.
CommandLine.Command
Annotate your class with @Command when you want more control over the format of the generated help message.
CommandLine.DefaultExceptionHandler<R> Deprecated.
CommandLine.DuplicateNameException
Exception indicating that multiple named elements have incorrectly used the same name.
CommandLine.DuplicateOptionAnnotationsException
Exception indicating that multiple fields have been annotated with the same Option name.
CommandLine.ExecutionException
Exception indicating a problem while invoking a command or subcommand.
CommandLine.ExitCode
Defines some exit codes used by picocli as default return values from the execute and executeHelpRequest methods.
CommandLine.Help
A collection of methods and inner classes that provide fine-grained control over the contents and layout of the usage help message to display to end users when help is requested or invalid input values were specified.
CommandLine.Help.Ansi
Provides methods and inner classes to support using ANSI escape codes in usage help messages.
CommandLine.Help.Ansi.IStyle
Defines the interface for an ANSI escape sequence.
CommandLine.Help.Ansi.Style
A set of pre-defined ANSI escape code styles and colors, and a set of convenience methods for parsing text with embedded markup style names, as well as convenience methods for converting styles to strings with embedded escape codes.
CommandLine.Help.ColorScheme
All usage help message are generated with a color scheme that assigns certain styles and colors to common parts of a usage message: the command name, options, positional parameters and option parameters.
CommandLine.Help.ColorScheme.Builder
Builder class to create ColorScheme instances.
CommandLine.Help.Column
Columns define the width, indent (leading number of spaces in a column before the value) and Overflow policy of a column in a TextTable.
CommandLine.Help.Column.Overflow
Policy for handling text that is longer than the column width: span multiple columns, wrap to the next row, or simply truncate the portion that doesn't fit.
CommandLine.Help.IOptionRenderer
When customizing online help for Option details, a custom IOptionRenderer can be used to create textual representation of an Option in a tabular format: one or more rows, each containing one or more columns.
CommandLine.Help.IParameterRenderer
When customizing online help for positional parameters details, a custom IParameterRenderer can be used to create textual representation of a Parameters field in a tabular format: one or more rows, each containing one or more columns.
CommandLine.Help.IParamLabelRenderer
When customizing online usage help for an option parameter or a positional parameter, a custom IParamLabelRenderer can be used to render the parameter name or label to a String.
CommandLine.Help.Layout
Use a Layout to format usage help text for options and parameters in tabular format.
CommandLine.Help.TextTable
Responsible for spacing out CommandLine.Help.Ansi.Text values according to the CommandLine.Help.Column definitions the table was created with.
CommandLine.Help.TextTable.Cell
Helper class to index positions in a Help.TextTable.
CommandLine.Help.Visibility
Controls the visibility of certain aspects of the usage help message.
CommandLine.HelpCommand
Help command that can be installed as a subcommand on all application commands.
CommandLine.IDefaultValueProvider
Provides default value for a command.
CommandLine.IExceptionHandler Deprecated.
CommandLine.IExceptionHandler2<R> Deprecated.
CommandLine.IExecutionExceptionHandler
Classes implementing this interface know how to handle Exceptions that occurred while executing the Runnable, Callable or Method user object of the command.
CommandLine.IExecutionStrategy
Implementations are responsible for "executing" the user input and returning an exit code.
CommandLine.IExitCodeExceptionMapper
Interface that provides the appropriate exit code that will be returned from the execute method for an exception that occurred during parsing or while invoking the command's Runnable, Callable, or Method.
CommandLine.IExitCodeGenerator
@Command-annotated classes can implement this interface to specify an exit code that will be returned from the execute method when the command is successfully invoked.
CommandLine.IFactory
Factory for instantiating classes that are registered declaratively with annotation attributes, like CommandLine.Command.subcommands(), CommandLine.Option.converter(), CommandLine.Parameters.converter() and CommandLine.Command.versionProvider().
CommandLine.IHelpCommandInitializable Deprecated.
CommandLine.IHelpCommandInitializable2
Help commands that provide usage help for other commands can implement this interface to be initialized with the information they need.
CommandLine.IHelpFactory
Creates the CommandLine.Help instance used to render the usage help message.
CommandLine.IHelpSectionRenderer
Renders a section of the usage help message.
CommandLine.INegatableOptionTransformer
Determines the option name transformation of negatable boolean options.
CommandLine.InitializationException
Exception indicating a problem during CommandLine initialization.
CommandLine.IParameterConsumer
Options or positional parameters can be assigned a IParameterConsumer that implements custom logic to process the parameters for this option or this position.
CommandLine.IParameterExceptionHandler
Classes implementing this interface know how to handle ParameterExceptions (usually from invalid user input).
CommandLine.IParseResultHandler Deprecated.
CommandLine.IParseResultHandler2<R> Deprecated.
CommandLine.ITypeConverter<K>
When parsing command line arguments and initializing fields annotated with @Option or @Parameters, String values can be converted to any type for which a ITypeConverter is registered.
CommandLine.IVersionProvider
Provides version information for a command.
CommandLine.MaxValuesExceededException
Exception indicating that more values were specified for an option or parameter than its arity allows.
CommandLine.MissingParameterException
Exception indicating that a required parameter was not specified.
CommandLine.MissingTypeConverterException
Exception indicating that an annotated field had a type for which no CommandLine.ITypeConverter was registered.
CommandLine.Mixin
Fields annotated with @Mixin are "expanded" into the current command: @Option and @Parameters in the mixin class are added to the options and positional parameters of this command.
CommandLine.Model
This class provides a namespace for classes and interfaces that model concepts and attributes of command line interfaces in picocli.
CommandLine.Model.ArgGroupSpec
The ArgGroupSpec class models a group of arguments (options, positional parameters or a mixture of the two).
CommandLine.Model.ArgGroupSpec.Builder
Builder responsible for creating valid ArgGroupSpec objects.
CommandLine.Model.ArgSpec
CommandLine.Model.CommandSpec
The CommandSpec class models a command specification, including the options, positional parameters and subcommands supported by the command, as well as attributes for the version help message and the usage help message of the command.
CommandLine.Model.IAnnotatedElement
Internal interface to allow annotation processors to construct a command model at compile time.
CommandLine.Model.IExtensible
Interface to allow extending the capabilities of other interface without Java 8 default methods.
CommandLine.Model.IGetter
Customizable getter for obtaining the current value of an option or positional parameter.
CommandLine.Model.IOrdered
Interface for sorting options and groups together.
CommandLine.Model.IScope
The scope of a getter/setter binding is the context where the current value should be gotten from or set to.
CommandLine.Model.ISetter
Customizable setter for modifying the value of an option or positional parameter.
CommandLine.Model.ITypeInfo
Encapculates type information for an option or parameter to make this information available both at runtime and at compile time (when Class values are not available).
CommandLine.Model.Messages
Utility class for getting resource bundle strings.
CommandLine.Model.MethodParam
Command method parameter, similar to java.lang.reflect.Parameter (not available before Java 8).
CommandLine.Model.OptionSpec
The OptionSpec class models aspects of a named option of a command, including whether it is required or optional, the option parameters supported (or required) by the option, and attributes for the usage help message describing the option.
CommandLine.Model.OptionSpec.Builder
Builder responsible for creating valid OptionSpec objects.
CommandLine.Model.ParserSpec
Models parser configuration specification.
CommandLine.Model.PositionalParamSpec
The PositionalParamSpec class models aspects of a positional parameter of a command, including whether it is required or optional, and attributes for the usage help message describing the positional parameter.
CommandLine.Model.PositionalParamSpec.Builder
Builder responsible for creating valid PositionalParamSpec objects.
CommandLine.Model.UnmatchedArgsBinding
This class allows applications to specify a custom binding that will be invoked for unmatched arguments.
CommandLine.Model.UsageMessageSpec
Models the usage help message specification and can be used to customize the usage help message.
CommandLine.MutuallyExclusiveArgsException
Exception indicating that the user input included multiple arguments from a mutually exclusive group.
CommandLine.Option
Annotate fields in your class with @Option and picocli will initialize these fields when matching arguments are specified on the command line.
CommandLine.OverwrittenOptionException
Exception indicating that an option for a single-value option field has been specified multiple times on the command line.
CommandLine.ParameterException
Exception indicating something went wrong while parsing command line options.
CommandLine.ParameterIndexGapException
Exception indicating that there was a gap in the indices of the fields annotated with CommandLine.Parameters.
CommandLine.Parameters
Fields annotated with @Parameters will be initialized with positional parameters.
CommandLine.ParentCommand
Fields annotated with @ParentCommand will be initialized with the parent command of the current subcommand.
CommandLine.ParseResult
Encapsulates the result of parsing an array of command line arguments.
CommandLine.ParseResult.Builder
Builds immutable ParseResult instances.
CommandLine.ParseResult.GroupMatch
A group's multiplicity specifies how many matches of a group may appear on the command line.
CommandLine.ParseResult.GroupMatchContainer
Provides information about an CommandLine.ArgGroup that was matched on the command line.
CommandLine.PicocliException
Base class of all exceptions thrown by picocli.CommandLine.
CommandLine.PropertiesDefaultProvider
IDefaultValueProvider implementation that loads default values for command line options and positional parameters from a properties file or Properties object.
CommandLine.Range
Describes the number of parameters required and accepted by an option or a positional parameter.
CommandLine.RegexTransformer
A regular expression-based option name transformation for negatable options.
CommandLine.RegexTransformer.Builder
Builder for creating RegexTransformer objects.
CommandLine.RunAll
Command line execution strategy that prints help if requested, and otherwise executes the top-level command and all subcommands as Runnable, Callable or Method.
CommandLine.RunFirst
Command line execution strategy that prints help if requested, and otherwise executes the top-level Runnable or Callable command.
CommandLine.RunLast
Command line execution strategy that prints help if requested, and otherwise executes the most specific Runnable or Callable subcommand.
CommandLine.ScopeType
Specifies the scope of the element.
CommandLine.Spec
Fields annotated with @Spec will be initialized with the CommandSpec for the command the field is part of.
CommandLine.Spec.Target
Identifies what kind of CommandSpec should be injected.
CommandLine.TypeConversionException
Exception thrown by CommandLine.ITypeConverter implementations to indicate a String could not be converted.
CommandLine.Unmatched
Fields annotated with @Unmatched will be initialized with the list of unmatched command line arguments, if any.
CommandLine.UnmatchedArgumentException
Exception indicating that a command line argument could not be mapped to any of the fields annotated with CommandLine.Option or CommandLine.Parameters.