Constants (Gravia :: Resource 1.1.3 API)

```
public interface Constants
```
Defines standard names for the environment system properties, service properties, and Manifest header attribute keys.
The values associated with these keys are of type String, unless otherwise indicated.

Since:

02-Jul-2010

Author:

thomas.diesler@jboss.com

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`GRAVIA_CAPABILITY` Manifest header that defines a generic module capability.
`static String`	`GRAVIA_ENABLED` Manifest header to mark an OSGi Bundle as Gravia enabled.
`static String`	`GRAVIA_IDENTITY_CAPABILITY` Manifest header that defines the module's identitiy.
`static String`	`GRAVIA_IDENTITY_REQUIREMENT` Manifest header that defines a module identitiy requirement.
`static String`	`GRAVIA_PROPERTIES` The default configuration file name as well as the system property to discover it.
`static String`	`GRAVIA_REQUIREMENT` Manifest header that defines a generic module requirement.
`static String`	`MODULE_ACTIVATOR` Header attribute identifying the module's activator class.
`static String`	`OBJECTCLASS` Service property identifying all of the class names under which a service was registered in the Runtime.
`static String`	`PROPERTY_MAVEN_REPOSITORY_BASE_URLS` The property that defines the Maven Repository base URLs.
`static String`	`PROPERTY_REPOSITORY_STORAGE_DIR` The property that defines the repository storage directory.
`static String`	`PROPERTY_REPOSITORY_STORAGE_FILE` The property that defines the repository storage file.
`static String`	`RUNTIME_CONFIGURATIONS_DIR` The property that defines the configurations directory.
`static String`	`RUNTIME_STORAGE_CLEAN` Runtime property specifying if and when the persistent storage area for the runtime should be cleaned.
`static String`	`RUNTIME_STORAGE_CLEAN_ONFIRSTINIT` Specifies that the runtime storage area must be cleaned before the runtime is initialized for the first time.
`static String`	`RUNTIME_STORAGE_DEFAULT` The default storage location
`static String`	`RUNTIME_STORAGE_DIR` Runtime property specifying the persistent storage area used by the runtime.
`static String`	`RUNTIME_TYPE` A string value representing the type of the runtime (e.g.
`static String`	`SERVICE_ID` Service property identifying a service's registration number.
`static String`	`SERVICE_PID` Service property identifying a service's persistent identifier.
`static String`	`SERVICE_RANKING` Service property identifying a service's ranking number.
`static String`	`URL_HANDLER_PROTOCOL` Service property naming the protocols serviced by a URLStreamHandlerService.

- Field Detail
  - GRAVIA_ENABLED
```
static final String GRAVIA_ENABLED
```
    Manifest header to mark an OSGi Bundle as Gravia enabled. The module identity is derived from the Bundle-SymbolicName and Bundle-Version.
    
    See Also:
    Constant Field Values
  - GRAVIA_IDENTITY_CAPABILITY
```
static final String GRAVIA_IDENTITY_CAPABILITY
```
    Manifest header that defines the module's identitiy.
    
    See Also:
    Constant Field Values
  - GRAVIA_IDENTITY_REQUIREMENT
```
static final String GRAVIA_IDENTITY_REQUIREMENT
```
    Manifest header that defines a module identitiy requirement.
    
    See Also:
    Constant Field Values
  - GRAVIA_CAPABILITY
```
static final String GRAVIA_CAPABILITY
```
    Manifest header that defines a generic module capability.
    
    See Also:
    Constant Field Values
  - GRAVIA_REQUIREMENT
```
static final String GRAVIA_REQUIREMENT
```
    Manifest header that defines a generic module requirement.
    
    See Also:
    Constant Field Values
  - MODULE_ACTIVATOR
```
static final String MODULE_ACTIVATOR
```
    Header attribute identifying the module's activator class.
    If present, this header specifies the name of the module resource class that implements the ModuleActivator interface and whose start and stop methods are called by the Runtime when the module is started and stopped, respectively.
    The header value may be retrieved from the Dictionary object returned by the Module.getHeaders() method.
    
    See Also:
    Constant Field Values
  - GRAVIA_PROPERTIES
```
static final String GRAVIA_PROPERTIES
```
    The default configuration file name as well as the system property to discover it.
    
    See Also:
    Constant Field Values
  - RUNTIME_STORAGE_DIR
```
static final String RUNTIME_STORAGE_DIR
```
    Runtime property specifying the persistent storage area used by the runtime. The value of this property must be a valid file path in the file system to a directory. If the specified directory does not exist then the runtime will create the directory. If the specified path exists but is not a directory or if the runtime fails to create the storage directory, then runtime initialization must fail. The runtime is free to use this directory as it sees fit. This area can not be shared with anything else.
    If this property is not set, the runtime should use a reasonable platform default for the persistent storage area.
    
    See Also:
    Constant Field Values
  - RUNTIME_STORAGE_CLEAN
```
static final String RUNTIME_STORAGE_CLEAN
```
    Runtime property specifying if and when the persistent storage area for the runtime should be cleaned. If this property is not set, then the runtime storage area must not be cleaned.
    
    See Also:
    Constant Field Values
  - RUNTIME_CONFIGURATIONS_DIR
```
static final String RUNTIME_CONFIGURATIONS_DIR
```
    The property that defines the configurations directory.
    
    See Also:
    Constant Field Values
  - RUNTIME_STORAGE_CLEAN_ONFIRSTINIT
```
static final String RUNTIME_STORAGE_CLEAN_ONFIRSTINIT
```
    Specifies that the runtime storage area must be cleaned before the runtime is initialized for the first time. Subsequent starts of the runtime will not result in cleaning the runtime storage area.
    
    See Also:
    Constant Field Values
  - RUNTIME_STORAGE_DEFAULT
```
static final String RUNTIME_STORAGE_DEFAULT
```
    The default storage location
    
    See Also:
    Constant Field Values
  - RUNTIME_TYPE
```
static final String RUNTIME_TYPE
```
    A string value representing the type of the runtime (e.g. tomcat,wildfly,karaf,etc)
    
    See Also:
    Constant Field Values
  - OBJECTCLASS
```
static final String OBJECTCLASS
```
    Service property identifying all of the class names under which a service was registered in the Runtime. The value of this property must be of type String[].
    This property is set by the Runtime when a service is registered.
    
    See Also:
    Constant Field Values
  - SERVICE_ID
```
static final String SERVICE_ID
```
    Service property identifying a service's registration number. The value of this property must be of type Long.
    The value of this property is assigned by the Runtime when a service is registered. The Runtime assigns a unique value that is larger than all previously assigned values since the Runtime was started. These values are NOT persistent across restarts of the Runtime.
    
    See Also:
    Constant Field Values
  - SERVICE_PID
```
static final String SERVICE_PID
```
    Service property identifying a service's persistent identifier.
    This property may be supplied in the properties Dictionary object passed to the ModuleContext.registerService method. The value of this property must be of type String, String[], or Collection of String.
    A service's persistent identifier uniquely identifies the service and persists across multiple Runtime invocations.
    
    See Also:
    Constant Field Values
  - SERVICE_RANKING
```
static final String SERVICE_RANKING
```
    Service property identifying a service's ranking number.
    This property may be supplied in the properties Dictionary object passed to the ModuleContext.registerService method. The value of this property must be of type Integer.
    The service ranking is used by the Runtime to determine the natural order of services, see {code ServiceReference#compareTo(Object)}, and the default service to be returned from a call to the ModuleContext#getServiceReference(Class) or ModuleContext#getServiceReference(String) method.
    The default ranking is zero (0). A service with a ranking of Integer.MAX_VALUE is very likely to be returned as the default service, whereas a service with a ranking of Integer.MIN_VALUE is very unlikely to be returned.
    If the supplied property value is not of type Integer, it is deemed to have a ranking value of zero.
    
    See Also:
    Constant Field Values
  - URL_HANDLER_PROTOCOL
```
static final String URL_HANDLER_PROTOCOL
```
    Service property naming the protocols serviced by a URLStreamHandlerService. The property's value is a protocol name.
    
    See Also:
    Constant Field Values
  - PROPERTY_MAVEN_REPOSITORY_BASE_URLS
```
static final String PROPERTY_MAVEN_REPOSITORY_BASE_URLS
```
    The property that defines the Maven Repository base URLs.
    
    See Also:
    Constant Field Values
  - PROPERTY_REPOSITORY_STORAGE_DIR
```
static final String PROPERTY_REPOSITORY_STORAGE_DIR
```
    The property that defines the repository storage directory.
    
    See Also:
    Constant Field Values
  - PROPERTY_REPOSITORY_STORAGE_FILE
```
static final String PROPERTY_REPOSITORY_STORAGE_FILE
```
    The property that defines the repository storage file.
    
    See Also:
    Constant Field Values

Interface Constants

Field Summary

Field Detail

GRAVIA_ENABLED

GRAVIA_IDENTITY_CAPABILITY

GRAVIA_IDENTITY_REQUIREMENT

GRAVIA_CAPABILITY

GRAVIA_REQUIREMENT

MODULE_ACTIVATOR

GRAVIA_PROPERTIES

RUNTIME_STORAGE_DIR

RUNTIME_STORAGE_CLEAN

RUNTIME_CONFIGURATIONS_DIR

RUNTIME_STORAGE_CLEAN_ONFIRSTINIT

RUNTIME_STORAGE_DEFAULT

RUNTIME_TYPE

OBJECTCLASS

SERVICE_ID

SERVICE_PID

SERVICE_RANKING

URL_HANDLER_PROTOCOL

PROPERTY_MAVEN_REPOSITORY_BASE_URLS

PROPERTY_REPOSITORY_STORAGE_DIR

PROPERTY_REPOSITORY_STORAGE_FILE