Database.com Metadata API Developer's Guide - Salesforce.com

Metadata TypesApexClassField NameapiVersionField TypedoubleDescriptionThe API version for this class. Every class has an API version specified atcreation.contentfullNamestatusbase64stringApexCodeUnitStatus(enumeration of type string)The Apex class definition. Base 64-encoded binary data. Prior to makingan API call, client applications must encode the binary attachment data asbase64. Upon receiving a response, client applications must decode thebase64 data to binary. This conversion is usually handled for you by aSOAP client. This field is inherited from the MetadataWithContentcomponent.The Apex class name. The name can only contain characters, letters, andthe underscore (_) character, must start with a letter, and cannot end withan underscore or contain two consecutive underscore characters. This fieldis inherited from the Metadata component.The current status of the Apex class. The following string values are valid:• Active - The class is active.• Deleted - The class is marked for deletion. This is useful for managedpackages, because it allows a class to be deleted when a managedpackage is updated.Note: ApexCodeUnitStatus includes an Inactive option, butit is only supported for ApexTrigger; it is not supported forApexClass.Declarative Metadata Sample DefinitionThe following sample creates the MyhelloWorld.cls class, and the corresponding MyHelloWorld.cls-meta.xmlmetadata file.MyHelloWorld.cls file:public class MyHelloWorld {// This method updates the Hello field on a list// of accounts.public static void addHelloWorld(Account[] accs){for (Account a:accs){if (a.Hello__c != 'World')a.Hello__c = 'World';}}}MyHelloWorld.cls-meta.xml:30.0See Also:ApexTrigger77