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## com.mxgraph.io
Class mxCodecRegistry

    java.lang.Object
      com.mxgraph.io.mxCodecRegistry

    public class mxCodecRegistry

extends Object

Singleton class that acts as a global registry for codecs. See `mxCodec` for an example.

Field Summary
`protected static Hashtable<String,String>` | `aliases` Maps from classnames to codecnames.
`protected static Hashtable<String,mxObjectCodec>` | `codecs` Maps from constructor names to codecs.
`protected static List<String>` | `packages` Holds the list of known packages.

Constructor Summary
`mxCodecRegistry()`

Method Summary
`static void` | `addAlias(String classname, String codecname)` Adds an alias for mapping a classname to a codecname.
`static void` | `addPackage(String packagename)` Adds the given package name to the list of known package names.
`static Class` | `getClassForName(String name)` Returns a class that corresponds to the given name.
`static mxObjectCodec` | `getCodec(String name)` Returns a codec that handles the given object, which can be an object instance or an XML node.
`static Object` | `getInstanceForName(String name)` Creates and returns a new instance for the given class name.
`static String` | `getName(Object instance)` Returns the name that identifies the codec associated with the given instance..
`static mxObjectCodec` | `register(mxObjectCodec codec)` Registers a new codec and associates the name of the template constructor in the codec with the codec object.

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

Field Detail

### codecs

    protected static Hashtable<String,mxObjectCodec> codecs

  Maps from constructor names to codecs.

### aliases

    protected static Hashtable<String,String> aliases

  Maps from classnames to codecnames.

### packages

    protected static List<String> packages

  Holds the list of known packages. Packages are used to prefix short class names (eg. mxCell) in XML markup.

Constructor Detail

### mxCodecRegistry

    public mxCodecRegistry()

Method Detail

### register

    public static mxObjectCodec register(mxObjectCodec codec)

  Registers a new codec and associates the name of the template constructor in the codec with the codec object. Automatically creates an alias if the codename and the classname are not equal.

### addAlias

    public static void addAlias(String classname,
                                String codecname)

  Adds an alias for mapping a classname to a codecname.

### getCodec

    public static mxObjectCodec getCodec(String name)

  Returns a codec that handles the given object, which can be an object instance or an XML node.

  Parameters:
    `name` - Java class name.

### addPackage

    public static void addPackage(String packagename)

  Adds the given package name to the list of known package names.

  Parameters:
    `packagename` - Name of the package to be added.

### getInstanceForName

    public static Object getInstanceForName(String name)

  Creates and returns a new instance for the given class name.

  Parameters:
    `name` - Name of the class to be instantiated.
  Returns:
    Returns a new instance of the given class.

### getClassForName

    public static Class getClassForName(String name)

  Returns a class that corresponds to the given name.

  Parameters:
    `name` -
  Returns:
    Returns the class for the given name.

### getName

    public static String getName(Object instance)

  Returns the name that identifies the codec associated with the given instance.. The I/O system uses unqualified classnames, eg. for a `com.mxgraph.model.mxCell` this returns `mxCell`.

  Parameters:
    `instance` - Instance whose node name should be returned.
  Returns:
    Returns a string that identifies the codec.

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Copyright (c) 2010 Gaudenz Alder. All rights reserved.