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java.lang.Objectcom.google.appengine.api.utils.SystemProperty
public class SystemProperty
Global system properties which are set by App Engine.
Example code:
if (SystemProperty.environment.value() == SystemProperty.Environment.Value.Production) {
// do something that's production-only
}
String version = SystemProperty.version.get();
| Nested Class Summary | |
|---|---|
static class |
SystemProperty.Environment
The current executing environment. |
| Field Summary | |
|---|---|
static SystemProperty |
applicationId
The application identifier for the current application. |
static SystemProperty |
applicationVersion
The major version number for the currently running version of the application plus a timestamp at which it was deployed. |
static SystemProperty.Environment |
environment
The current executing environment. |
static SystemProperty |
instanceReplicaId
Deprecated. Use com.google.appengine.api.servers.ServerService#getCurrentInstance() |
static SystemProperty |
version
The current executing runtime version. |
| Method Summary | |
|---|---|
java.lang.String |
get()
Gets the value of the system property. |
java.lang.String |
key()
The key for the system property. |
void |
set(java.lang.String value)
Sets the value of the system property. |
| Methods inherited from class java.lang.Object |
|---|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
public static final SystemProperty.Environment environment
"com.google.appengine.runtime.environment".
Has the values "Production" and "Development".
public static final SystemProperty version
"com.google.appengine.runtime.version".
A Version value is composed of period-separated integers, for example,
"1.2.8".
public static final SystemProperty applicationId
"com.google.appengine.application.id".
public static final SystemProperty applicationVersion
"com.google.appengine.application.version".
@Deprecated public static final SystemProperty instanceReplicaId
com.google.appengine.api.servers.ServerService#getCurrentInstance()| Method Detail |
|---|
public java.lang.String key()
public java.lang.String get()
System.getProperty(key()).
public void set(java.lang.String value)
System.setProperty(key(), value).
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