CommandCatalog

java.lang.Object
- org.eclipse.jgit.pgm.CommandCatalog

```
public class CommandCatalog
extends java.lang.Object
```
List of all commands known by jgit's command line tools.
Commands are implementations of TextBuiltin, with an optional Command class annotation to insert additional documentation or override the default command name (which is guessed from the class name).
Commands may be registered by adding them to a services file in the same JAR (or classes directory) as the command implementation. The service file name is META-INF/services/org.eclipse.jgit.pgm.TextBuiltin and it contains one concrete implementation class name per line.
Command registration is identical to Java 6's services, however the catalog uses a lightweight wrapper to delay creating a command instance as much as possible. This avoids initializing the AWT or SWT GUI toolkits even if the command's constructor might require them.

Field Summary

Fields
Modifier and Type Field Description

private java.util.Map<java.lang.String,CommandRef> commands

private static CommandCatalog INSTANCE

private java.lang.ClassLoader ldr

Constructor Summary

Constructors
Modifier Constructor Description

private CommandCatalog()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static CommandRef[]`	`all()`	Get all commands sorted by their name
`private java.util.Enumeration<java.net.URL>`	`catalogs()`
`static CommandRef[]`	`common()`	Get all common commands sorted by their name
`static CommandRef`	`get(java.lang.String name)`	Locate a single command by its user friendly name.
`private void`	`load(java.lang.String cn)`
`private void`	`scan(java.net.URL cUrl)`
`private static CommandRef[]`	`toSortedArray(java.util.Collection<CommandRef> c)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - INSTANCE
```
private static final CommandCatalog INSTANCE
```
  - ldr
```
private final java.lang.ClassLoader ldr
```
  - commands
```
private final java.util.Map<java.lang.String,CommandRef> commands
```
- Constructor Detail
  - CommandCatalog
```
private CommandCatalog()
```
- Method Detail
  - get
```
public static CommandRef get(java.lang.String name)
```
    Locate a single command by its user friendly name.
    
    Parameters:
    
    name - name of the command. Typically in dash-lower-case-form, which was derived from the DashLowerCaseForm class name.
    
    Returns:
    
    the command instance; null if no command exists by that name.
  - all
```
public static CommandRef[] all()
```
    Get all commands sorted by their name
    
    Returns:
    
    all known commands, sorted by command name.
  - common
```
public static CommandRef[] common()
```
    Get all common commands sorted by their name
    
    Returns:
    
    all common commands, sorted by command name.
  - toSortedArray
```
private static CommandRef[] toSortedArray(java.util.Collection<CommandRef> c)
```
  - catalogs
```
private java.util.Enumeration<java.net.URL> catalogs()
```
  - scan
```
private void scan(java.net.URL cUrl)
```
  - load
```
private void load(java.lang.String cn)
```