Class ServerProperties
- Author:
- Marek Potociar, Libor Kramolis, Michal Gajdos, Martin Matula
-
Field Summary
Modifier and TypeFieldDescriptionstatic final String
String
property that defines the application name.static final String
A Bean Validation (JSR-349) support customization property.static final String
Iftrue
then disable Bean Validation support.static final String
A Bean Validation (JSR-349) support customization property.static final String
JVM argument to define the value ofReservoirConstants.COLLISION_BUFFER_POWER
.static final String
Jakarta RESTful WebServices provides@Consumes
annotation to accept only HTTP requests with compatibleContent-Type
header.static final String
Iftrue
then disable auto discovery on server.static final String
Defines configuration of HTTP method overriding.static final String
Iftrue
then disable configuration of Json Processing (JSR-353) feature on server.static final String
Defines mapping of URI extensions to languages.static final String
Iftrue
then Jersey will not attempt to resolve relative URIs in theLocation
http header against the request URI.static final String
Iftrue
then Jersey will resolve relative URIs in theLocation
http header against the request URI according to RFC7231 (new HTTP Specification).static final String
Defines mapping of URI extensions to media types.static final String
Iftrue
then disable META-INF/services lookup on server.static final String
Iftrue
then application monitoring will be enabled.static final String
Iftrue
then calculation of monitoring statistics will be enabled.static final String
Iftrue
then Jersey will expose MBeans with monitoring statistics.static final String
Interval (inms
) indicating how often will be monitoring statistics refreshed andonStatistics
method called.static final String
Iftrue
then disable configuration of MOXy Json feature on server.static final String
An integer value that defines the buffer size used to buffer server-side response entity in order to determine its size and set the value of HTTP "Content-Length" header.static final String
If property value istrue
then the errors raised during response processing are tried to handled using availableresponse error mappers
.static final String
Defines one or more class names that implement application-specific resources and providers.static final String
Defines class-path that contains application-specific resources and providers.static final String
Defines one or more packages that contain application-specific resources and providers.static final String
Sets the recursion strategy for package scanning.static final String
If set totrue
then a container will ignore multiple slashes between a port and a context path and will resolve it as URI with only one slash.static final String
Iftrue
then the extensive validation of application resource model is disabled.static final String
Iftrue
then validation of application resource models does not fail even in case of a fatal validation errors.static final String
Whenever response status is4xx
or5xx
it is possible to choose betweensendError
orsetStatus
on container specificResponse
implementation.static final String
An integer value that defines the maximum age (in seconds) for cached for sub-resource locator models.static final String
Iftrue
then Jersey will cacheJersey resources
in addition to caching sub-resource locator classes and instances (which are cached by default).static final String
An integer value that defines the size of cache for sub-resource locator models.static final int
The default sub-resource locator cache size (64).static final String
Enable tracing support.static final String
Set level o tracing information.static final String
Iftrue
message body writer will not useCompletionStage
as a generic type.static final String
Iftrue
then disable WADL generation.static final String
If set the wadl generator configuration that provides aWadlGenerator
.static final String
Defines whether to allow privileged ports (0-1023) to be used to start theWebServer
implementation to be chosen from the unused ports when theSeBootstrap.Configuration.PORT
is set to-1
or unset.static final String
Whether to automatically startupWebServer
at bootstrap.static final String
Defines the implementation ofWebServer
to bootstrap. -
Method Summary
Modifier and TypeMethodDescriptionstatic <T> T
getValue
(Map<String, ?> properties, RuntimeType runtimeType, String key, T defaultValue, Class<T> type) Get the value of the specified property.static <T> T
Get the value of the specified property.static <T> T
Get the value of the specified property.static <T> T
Get the value of the specified property.
-
Field Details
-
PROVIDER_PACKAGES
Defines one or more packages that contain application-specific resources and providers. If the property is set, the specified packages will be scanned for JAX-RS root resources (annotated with@Path
) and providers (annotated with@Provider
).The property value MUST be an instance of
String
orString[]
array. EachString
instance represents one or more package names that MUST be separated only by characters declared in common delimiters:" ,;\n"
.A default value is not set.
The name of the configuration property is "jersey.config.server.provider.packages".
- See Also:
-
PROVIDER_SCANNING_RECURSIVE
Sets the recursion strategy for package scanning. The value oftrue
indicates that thelist of provided package names
should be scanned recursively including any nested packages. Value offalse
indicates that only packages in the list should be scanned. In such case any nested packages will be ignored.The property value MUST be an instance of
Boolean
type or aString
convertible toBoolean
type.A default value is
true
.The name of the configuration property is "jersey.config.server.provider.scanning.recursive".
- See Also:
-
PROVIDER_CLASSPATH
Defines class-path that contains application-specific resources and providers. If the property is set, the specified class-path will be scanned for JAX-RS root resources (annotated with@Path
) and providers (annotated with@Provider
). Each path element MUST be an absolute or relative directory, or a Jar file. The contents of a directory, including Java class files, jars files and sub-directories are scanned (recursively).The property value MUST be an instance of
String
orString[]
array. EachString
instance represents one or more paths that MUST be separated only by characters declared in common delimiters:" ,;\n"
.A default value is not set.
The name of the configuration property is "jersey.config.server.provider.classpath".
- See Also:
-
PROVIDER_CLASSNAMES
Defines one or more class names that implement application-specific resources and providers. If the property is set, the specified classes will be instantiated and registered as either application JAX-RS root resources (annotated with@Path
) or providers (annotated with@Provider
).The property value MUST be an instance of
String
orString[]
array. EachString
instance represents one or more class names that MUST be separated only by characters declared in common delimiters:" ,;\n"
.A default value is not set.
The name of the configuration property is "jersey.config.server.provider.classnames".
- See Also:
-
MEDIA_TYPE_MAPPINGS
Defines mapping of URI extensions to media types. The property is used byUriConnegFilter
. See it's javadoc for more information on media type mappings.The property value MUST be an instance of
String
,String[]
orMap<String, MediaType>
. EachString
instance represents one or more uri-extension-to-media-type map entries separated by a comma (","). Each map entry is a key-value pair separated by a colon (":"). Here is an example of an acceptable String value mapping txt extension to text/plain and xml extension to application/xml:txt : text/plain, xml : application/xml
A default value is not set.
The name of the configuration property is "jersey.config.server.mediaTypeMappings".
- See Also:
-
LANGUAGE_MAPPINGS
Defines mapping of URI extensions to languages. The property is used byUriConnegFilter
. See it's javadoc for more information on language mappings.The property value MUST be an instance of
String
,String[]
orMap<String, String>
. EachString
instance represents one or more uri-extension-to-language map entries separated by a comma (","). Each map entry is a key-value pair separated by a colon (":"). Here is an example of an acceptable String value mapping english extension to "en" value of Content-Language header and french extension to "fr" Content-Language header value:english : en, french : fr
A default value is not set.
The name of the configuration property is "jersey.config.server.languageMappings".
- See Also:
-
HTTP_METHOD_OVERRIDE
Defines configuration of HTTP method overriding. This property is used byHttpMethodOverrideFilter
to determine where it should look for method override information (e.g. request header or query parameters).HttpMethodOverrideFilter.Source
enum lists the allowed property values.The property value must be an instance of
String
,String[]
,Source
orSource[]
. EachString
instance represents one or more class names separated by characters declared in common delimiters:" ,;\n"
.The default value is
"HEADER, QUERY"
.The name of the configuration property is "jersey.config.server.httpMethodOverride".
- See Also:
-
WADL_GENERATOR_CONFIG
If set the wadl generator configuration that provides aWadlGenerator
. If this property is not set the default wadl generator will be used for generating wadl.The type of this property must be a subclass or an instance of a subclass of
WadlGeneratorConfig
.The name of the configuration property is "jersey.config.server.wadl.generatorConfig".
- See Also:
-
WADL_FEATURE_DISABLE
Iftrue
then disable WADL generation. By default WADL generation is automatically enabled, if JAXB is present in the classpath.The default value is
false
.The name of the configuration property is "jersey.config.server.wadl.disableWadl".
- See Also:
-
BV_FEATURE_DISABLE
Iftrue
then disable Bean Validation support. By default Bean Validation (JSR-349) is automatically enabled, iforg.glassfish.jersey.ext::jersey-bean-validation
Jersey module is present in the classpath.The default value is
false
.The name of the configuration property is "jersey.config.beanValidation.disable.server".
- See Also:
-
BV_DISABLE_VALIDATE_ON_EXECUTABLE_OVERRIDE_CHECK
A Bean Validation (JSR-349) support customization property. Iftrue
the check whether the overriding / implementing methods are annotated withValidateOnExecution
as well as one of their predecessor (in hierarchy) is disabled.By default this checks is automatically enabled, unless the Bean Validation support is disabled explicitly (see
BV_FEATURE_DISABLE
).The default value is
false
.The name of the configuration property is "jersey.config.beanValidation.disable.validateOnExecutableCheck.server".
- See Also:
-
ValidateOnExecution
- Constant Field Values
-
BV_SEND_ERROR_IN_RESPONSE
A Bean Validation (JSR-349) support customization property. If set totrue
and Bean Validation support has not been explicitly disabled (seeBV_FEATURE_DISABLE
), the validation error information will be sent in the entity of the returnedResponse
.The default value is
false
. This means that in case of an error response caused by a Bean Validation error, only a status code is sent in the serverResponse
by default.The name of the configuration property is "jersey.config.beanValidation.enableOutputValidationErrorEntity.server".
- See Also:
-
REDUCE_CONTEXT_PATH_SLASHES_ENABLED
If set totrue
then a container will ignore multiple slashes between a port and a context path and will resolve it as URI with only one slash.The default value is
false
. This means that in case of multiple slashes a container will match with the address with the same number of slashes before a context path.The property influences only Grizzly Container from containers which are supported by Jersey. Other containers have limited or disabled usage of a context path.
The name of the configuration property is "jersey.config.server.reduceContextPathSlashes.enabled".
- See Also:
-
FEATURE_AUTO_DISCOVERY_DISABLE
Iftrue
then disable auto discovery on server. By default auto discovery is automatically enabled if global property "jersey.config.disableAutoDiscovery" is not disabled. If set then the server property value overrides the global property value.The default value is
false
.The name of the configuration property is "jersey.config.server.disableAutoDiscovery".
This constant is an alias for
CommonProperties.FEATURE_AUTO_DISCOVERY_DISABLE_SERVER
-
OUTBOUND_CONTENT_LENGTH_BUFFER
An integer value that defines the buffer size used to buffer server-side response entity in order to determine its size and set the value of HTTP "Content-Length" header.If the entity size exceeds the configured buffer size, the buffering would be cancelled and the entity size would not be determined. Value less or equal to zero disable the buffering of the entity at all.
This property can be used on the server side to override the outbound message buffer size value - default or the global custom value set using the "jersey.config.contentLength.buffer" global property.The default value is 8192.
The name of the configuration property is "jersey.config.server.contentLength.buffer".
This constant is an alias for
CommonProperties.OUTBOUND_CONTENT_LENGTH_BUFFER_SERVER
- Since:
- 2.2
- See Also:
-
JSON_PROCESSING_FEATURE_DISABLE
Iftrue
then disable configuration of Json Processing (JSR-353) feature on server. By default Json Processing is automatically enabled if global property "jersey.config.disableJsonProcessing" is not disabled. If set then the server property value overrides the global property value.The default value is
false
.The name of the configuration property is "jersey.config.server.disableJsonProcessing".
This constant is an alias for
CommonProperties.JSON_PROCESSING_FEATURE_DISABLE_SERVER
-
METAINF_SERVICES_LOOKUP_DISABLE
Iftrue
then disable META-INF/services lookup on server. By default Jersey looks up SPI implementations described by META-INF/services/* files. Then you can register appropriate provider classes byApplication
.The default value is
false
.The name of the configuration property is "jersey.config.server.disableMetainfServicesLookup".
This constant is an alias for
CommonProperties.METAINF_SERVICES_LOOKUP_DISABLE_SERVER
- Since:
- 2.1
- See Also:
-
MOXY_JSON_FEATURE_DISABLE
Iftrue
then disable configuration of MOXy Json feature on server. By default MOXy Json is automatically enabled if global property "jersey.config.disableMoxyJson" is not disabled. If set then the server property value overrides the global property value.The default value is
false
.The name of the configuration property is "jersey.config.server.disableMoxyJson".
This constant is an alias for
CommonProperties.MOXY_JSON_FEATURE_DISABLE_SERVER
-
RESOURCE_VALIDATION_DISABLE
Iftrue
then the extensive validation of application resource model is disabled. This impacts both the validation of root resources during deployment as well as validation of any sub resources returned from sub-resource locators.This option is typically used for performance purpose. Note however that in case the application resource models are not valid, setting the property to
true
can cause invalid behaviour and hard to diagnose issues at runtime.By default the resource validation is run on models which are created either from the supplied resource class or instance as well as on any directly provided
resource
models.The default value is
false
.The name of the configuration property is "jersey.config.server.resource.validation.disable".
-
RESOURCE_VALIDATION_IGNORE_ERRORS
Iftrue
then validation of application resource models does not fail even in case of a fatal validation errors. All resource model validation issues are still output to the log, unless the resource model validation is completely disabled (seeRESOURCE_VALIDATION_DISABLE
). This impacts both the validation of root resources during deployment as well as validation of any sub resources returned from sub-resource locators. The option is typically used during development and testing.The default value is
false
.The name of the configuration property is "jersey.config.server.resource.validation.ignoreErrors".
-
MONITORING_ENABLED
Iftrue
then application monitoring will be enabled. This will enable the possibility of injectingApplicationInfo
into resource and providers.The default value is
false
.The name of the configuration property is "jersey.config.server.monitoring.enabled".
- Since:
- 2.12
- See Also:
-
MONITORING_STATISTICS_ENABLED
Iftrue
then calculation of monitoring statistics will be enabled. This will enable the possibility of injectingMonitoringStatistics
into resource and providers and also the registered listeners implementingMonitoringStatisticsListener
will be called when statistics are available. Monitoring statistics extends basic monitoring feature. Therefore when enabled, the monitoring gets automatically enabled too (the same result as setting the propertyMONITORING_ENABLED
true
). Enabling statistics has negative performance impact and therefore should be enabled only when needed.The default value is
false
.The name of the configuration property is "jersey.config.server.monitoring.statistics.enabled".
-
MONITORING_STATISTICS_MBEANS_ENABLED
Iftrue
then Jersey will expose MBeans with monitoring statistics. Exposed JMX MBeans are based onMonitoringStatistics
and therefore when they are enabled, also the calculation of monitoring statistics needs to be enabled. Therefore if this property istrue
the calculation of monitoring statistics is automatically enabled (the same result as setting the propertyMONITORING_STATISTICS_ENABLED
totrue
). Enabling statistics MBeans has negative performance impact and therefore should be enabled only when needed.The default value is
false
.The name of the configuration property is "jersey.config.server.monitoring.statistics.mbeans.enabled".
-
MONITORING_STATISTICS_REFRESH_INTERVAL
Interval (inms
) indicating how often will be monitoring statistics refreshed andonStatistics
method called. The default value is500
. The name of the configuration property is "jersey.config.server.monitoring.statistics.refresh.interval".- Since:
- 2.10
- See Also:
-
APPLICATION_NAME
String
property that defines the application name. The name is an arbitrary user defined name which is used to distinguish between Jersey applications in the case that more applications are deployed on the same runtime (container). The name can be used for example for purposes of monitoring by JMX when name identifies to which application deployed MBeans belong to. The name should be unique in the runtime.The property is ignored if the application name is set programmatically by
ResourceConfig.getApplicationName()
. </p/>There is no default value.
The name of the configuration property is "jersey.config.server.application.name".
- See Also:
-
TRACING
Enable tracing support. It allows service developer to get diagnostic information about request processing by Jersey. Those diagnostic/tracing information are returned in response headers (X-Jersey-Tracing-nnn
). The feature should not be switched on on production environment.Allowed values:
OFF
- tracing support is disabled.ON_DEMAND
- tracing support is in 'stand by' mode, it is enabled on demand by existence of request HTTP headerALL
- tracing support is enabled for every request.
String
. The default value is"OFF"
.The name of the configuration property is "jersey.config.server.tracing.type".
- Since:
- 2.3
- See Also:
-
TRACING_THRESHOLD
Set level o tracing information. The property allows to set application default level o diagnostic information. Tracing level can be changed for each request by specifying request HTTP headerX-Jersey-Tracing-Threshold
.Allowed values:
SUMMARY
TRACE
VERBOSE
String
. The default value is"TRACE"
.The name of the configuration property is "jersey.config.server.tracing.threshold".
- Since:
- 2.3
- See Also:
-
RESPONSE_SET_STATUS_OVER_SEND_ERROR
Whenever response status is4xx
or5xx
it is possible to choose betweensendError
orsetStatus
on container specificResponse
implementation. E.g. on servlet container Jersey can callHttpServletResponse.setStatus(...)
orHttpServletResponse.sendError(...)
.Calling
sendError(...)
method usually resets entity, response headers and provide error page for specified status code (e.g. servleterror-page
configuration). However if you want to post-process response (e.g. by servlet filter) the only way to do it is callingsetStatus(...)
on container Response object.If property value is
true
the methodResponse.setStatus(...)
is used over defaultResponse.sendError(...)
.Type of the property value is
boolean
. The default value isfalse
.The name of the configuration property is "jersey.config.server.response.setStatusOverSendError".
- Since:
- 2.5
- See Also:
-
PROCESSING_RESPONSE_ERRORS_ENABLED
If property value istrue
then the errors raised during response processing are tried to handled using availableresponse error mappers
.Type of the property value is
boolean
. The default value isfalse
.The name of the configuration property is "jersey.config.server.exception.processResponseErrors".
- Since:
- 2.8
- See Also:
-
SUBRESOURCE_LOCATOR_CACHE_SIZE
An integer value that defines the size of cache for sub-resource locator models. The cache is used to provide better performance for application that uses JAX-RS sub-resource locators.The default value is 64.
The name of the configuration property is "jersey.config.server.subresource.cache.size".
- Since:
- 2.16
- See Also:
-
SUBRESOURCE_LOCATOR_DEFAULT_CACHE_SIZE
public static final int SUBRESOURCE_LOCATOR_DEFAULT_CACHE_SIZEThe default sub-resource locator cache size (64).- Since:
- 2.16
- See Also:
-
SUBRESOURCE_LOCATOR_CACHE_AGE
An integer value that defines the maximum age (in seconds) for cached for sub-resource locator models. The age of an cache entry is defined as the time since the last access (read) to the entry in the cache.Entry aging is not enabled by default.
The name of the configuration property is "jersey.config.server.subresource.cache.age".
- Since:
- 2.16
- See Also:
-
SUBRESOURCE_LOCATOR_CACHE_JERSEY_RESOURCE_ENABLED
Iftrue
then Jersey will cacheJersey resources
in addition to caching sub-resource locator classes and instances (which are cached by default). To make sure the caching is effective in this case you need to return same Jersey Resource instances for same input parameters from resource method. This means that generating new Jersey Resource instances for same input parameters would not have any performance effect and it would only fill-up the cache.The default value is
false
.The name of the configuration property is "jersey.config.server.subresource.cache.jersey.resource.enabled".
- See Also:
-
LOCATION_HEADER_RELATIVE_URI_RESOLUTION_RFC7231
Iftrue
then Jersey will resolve relative URIs in theLocation
http header against the request URI according to RFC7231 (new HTTP Specification).This behaviour violates the JAX-RS 2.0 specification (which dates older than RFC7231). If
LOCATION_HEADER_RELATIVE_URI_RESOLUTION_DISABLED
is set totrue
, value of this property is not taken into account.The default value is
false
(JAX-RS 2.0 compliant).The name of the configuration property is "jersey.config.server.headers.location.relative.resolution.rfc7231".
- Since:
- 2.22.1
- See Also:
-
LOCATION_HEADER_RELATIVE_URI_RESOLUTION_DISABLED
Iftrue
then Jersey will not attempt to resolve relative URIs in theLocation
http header against the request URI.The default value is
false
.The name of the configuration property is "jersey.config.server.headers.location.relative.resolution.disabled".
- Since:
- 2.22
- See Also:
-
UNWRAP_COMPLETION_STAGE_IN_WRITER_ENABLE
Iftrue
message body writer will not useCompletionStage
as a generic type. TheCompletionStage
value will be unwrapped and the message body writer will be invoked with the unwrapped type.The default value is
true
.The name of the configuration property is "jersey.config.server.unwrap.completion.stage.writer.enable".
- Since:
- 2.33
- See Also:
-
EMPTY_REQUEST_MEDIA_TYPE_MATCHES_ANY_CONSUMES
Jakarta RESTful WebServices provides
@Consumes
annotation to accept only HTTP requests with compatibleContent-Type
header. However, when the header is missing a wildcard media type is used to match the@Consumes
annotation.HTTP/1.1 RFCrecommends that missing
Content-Type
header MAY default toapplication/octet-stream
. This property makes Jersey consider the missing HTTPContent-Type
header to beapplication/octet-stream
rather than a wildcard media type. However, for a resource method without an entity argument, such as for HTTP GET, a wildcard media type is still considered to accept the HTTP request for the missing HTTPContent-Type
header.Set this property to false, if the empty request media type should not to match applied
@Consumes
annotation on a resource method with an entity argument. The default istrue
. The name of the configuration property is "jersey.config.server.empty.request.media.matches.any.consumes".- Since:
- 3.1.0
- See Also:
-
WEBSERVER_ALLOW_PRIVILEGED_PORTS
Defines whether to allow privileged ports (0-1023) to be used to start theWebServer
implementation to be chosen from the unused ports when theSeBootstrap.Configuration.PORT
is set to-1
or unset.The default ports are
Container.DEFAULT_HTTP_PORT
for HTTP andContainer.DEFAULT_HTTPS_PORT
for HTTPS whenWEBSERVER_ALLOW_PRIVILEGED_PORTS
istrue
or 8080 for HTTP and 8443 for HTTPS whenWEBSERVER_ALLOW_PRIVILEGED_PORTS
isfalse
.If
SeBootstrap.Configuration.PORT
is set to0
, the implementation scans for random unused port (0-65535) whenWEBSERVER_ALLOW_PRIVILEGED_PORTS
istrue
, or (1024-65535) whenWEBSERVER_ALLOW_PRIVILEGED_PORTS
isfalse.
The default this is
false
. Usetrue
to allow a restricted port number. The name of the configuration property is "jersey.config.server.bootstrap.webserver.allow.privileged.ports".- Since:
- 3.1.0
- See Also:
-
WEBSERVER_AUTO_START
Whether to automatically startupWebServer
at bootstrap.By default, servers are immediately listening to connections after bootstrap, so no explicit invocation of
WebServer.start()
is needed. The name of the configuration property is "jersey.config.server.bootstrap.webserver.autostart".- Since:
- 3.1.0
- See Also:
-
WEBSERVER_CLASS
Defines the implementation ofWebServer
to bootstrap.By default auto-selects the first server provider found. The name of the configuration property is "jersey.config.server.bootstrap.webserver.class".
- Since:
- 3.1.0
- See Also:
-
COLLISION_BUFFER_POWER_JVM_ARG
JVM argument to define the value ofReservoirConstants.COLLISION_BUFFER_POWER
. Lower values reduce the memory footprint.- See Also:
-
-
Method Details
-
getValue
Get the value of the specified property. If the property is not set or the real value type is not compatible with the specified value type, returnsnull
.- Type Parameters:
T
- Type of the property value.- Parameters:
properties
- Map of properties to get the property value from.key
- Name of the property.type
- Type to retrieve the value as.- Returns:
- Value of the property or
null
. - Since:
- 2.8
-
getValue
Get the value of the specified property. If the property is not set or the real value type is not compatible withdefaultValue
type, the specifieddefaultValue
is returned. Calling this method is equivalent to callingServerProperties.getValue(properties, key, defaultValue, (Class<T>) defaultValue.getClass())
.- Type Parameters:
T
- Type of the property value.- Parameters:
properties
- Map of properties to get the property value from.key
- Name of the property.defaultValue
- Default value if property is not registered- Returns:
- Value of the property or
null
. - Since:
- 2.8
-
getValue
Get the value of the specified property. If the property is not set or the real value type is not compatible with the specified value type, returnsdefaultValue
.- Type Parameters:
T
- Type of the property value.- Parameters:
properties
- Map of properties to get the property value from.key
- Name of the property.defaultValue
- Default value if property is not registeredtype
- Type to retrieve the value as.- Returns:
- Value of the property or
null
. - Since:
- 2.8
-
getValue
public static <T> T getValue(Map<String, ?> properties, RuntimeType runtimeType, String key, T defaultValue, Class<T> type) Get the value of the specified property. If the property is not set or the real value type is not compatible with the specified value type, returnsdefaultValue
.- Type Parameters:
T
- Type of the property value.- Parameters:
properties
- Map of properties to get the property value from.runtimeType
- Runtime type which is used to check whether there is a property with the samekey
but post-fixed by runtime type (.server or.client
) which would override thekey
property.key
- Name of the property.defaultValue
- Default value if property is not registeredtype
- Type to retrieve the value as.- Returns:
- Value of the property or
null
. - Since:
- 2.8
-