AGSDictionarySymbolStyle Class Reference

Description

A dictionary symbol style object containing symbol primitives and rules for generating symbols from attribute values.

An AGSDictionarySymbolStyle is created from a style file on disk (an SQLite database with a .stylx extension, created with ArcGIS Pro).

An AGSDictionarySymbolStyle must contain a set of symbol primitives and a rule engine that parses input fields. The AGSDictionarySymbolStyle assembles new symbols based on the input attribute values. AGSDictionarySymbolStyle is often used to render symbols from a military specification (such as Mil2525D or App6B) but can also be used with a custom style.

An AGSDictionarySymbolStyle is used in conjunction with an AGSDictionaryRenderer to symbolize geoelements in a AGSFeatureLayer or AGSGraphicsOverlay.

See also

AGSDictionaryRenderer

Since

100

Inheritance diagram for AGSDictionarySymbolStyle:

Instance Methods
(void)	- cancelLoad
(id< AGSCancelable >)	- defaultSearchParametersWithCompletion:
(instancetype)	- initWithFileURL:
(instancetype)	- initWithName:
(instancetype)	- initWithSpecificationType:
(instancetype)	- initWithSpecificationType:styleURL:
(instancetype)	- initWithURL:
(void)	- loadWithCompletion:
(void)	- retryLoadWithCompletion:
(id< AGSCancelable >)	- searchSymbolsWithParameters:completion:
(id< AGSCancelable >)	- symbolForKeys:completion:
(id< AGSCancelable >)	- symbolWithAttributes:completion:

Class Methods
(instancetype)	+ dictionarySymbolStyleWithFileURL:
(instancetype)	+ dictionarySymbolStyleWithName:
(instancetype)	+ dictionarySymbolStyleWithSpecificationType:
(instancetype)	+ dictionarySymbolStyleWithSpecificationType:styleURL:
(instancetype)	+ symbolStyleWithName:
(instancetype)	+ symbolStyleWithURL:

Properties
NSDictionary< NSString *, NSString * > *	configurationProperties
NSArray< AGSDictionarySymbolStyleConfiguration * > *	configurations
AGSCredential *	credential
NSString *	dictionaryName
NSError *	loadError
AGSLoadStatus	loadStatus
AGSRequestConfiguration *	requestConfiguration
NSString *	specificationType
NSArray< NSString * > *	symbologyFieldNames
NSArray< NSString * > *	textFieldNames
NSURL *	URL

Method Documentation

cancelLoad()

- (void) cancelLoad

requiredinherited

Cancels loading if it is in progress, otherwise it does nothing. This should be called carefully because other objects could be waiting for loadWithCompletion: or retryLoadWithCompletion: to complete and this will call them all back with the error of NSUserCancelledError

Since

100

defaultSearchParametersWithCompletion:()

- (id<AGSCancelable>) defaultSearchParametersWithCompletion:

(void(^)(AGSSymbolStyleSearchParameters *__nullable searchParams, NSError *__nullable error))

completion

A convenience method to get properly initialized search parameters for looking up symbols within the .stylx file. The parameters contain all of the possible input values for categories, keys, names, symbolClasses, and tags. This is an expensive task that should be used sparingly. Returns a AGSSymbolStyleSearchParameters object providing all available search parameters from the database.

This asynchronous task retrieves all the valid input search parameters for a style. This means you get all of the possible input values for categories, keys, names, symbolClasses, and tags. This is an expensive task that should be used sparingly.

Parameters

completion

Block that is invoked when the operation finishes. The searchParams parameter is populated if the operation completed successfully, otherwise the error parameter is populated.

See also

- searchSymbolsWithParameters:completion:

Since

100

dictionarySymbolStyleWithFileURL:()

+ (instancetype) dictionarySymbolStyleWithFileURL:

(NSURL *)

fileURL

Creates a new dictionary symbol style object from the style file at the provided location.

Parameters

fileURL

The physical location the .stylx file.

Since

100.6

dictionarySymbolStyleWithName:()

+ (instancetype) dictionarySymbolStyleWithName:

(NSString *)

name

Creates a new dictionary symbol style object from the name style file within the application bundle or shared documents directory.

Parameters

name	The name of the stylx file (excluding the .stylx file extension).

Since

100.6

dictionarySymbolStyleWithSpecificationType:()

+ (instancetype) dictionarySymbolStyleWithSpecificationType:

(NSString *)

specificationType

Creates a new dictionary symbol style object for a known military standard (such as Mil2525D). This constructor is only valid for use with the older format style files. An AGSErrorCodeCommonInvalidArgument is raised if a newer format (Arcade-based) style is encountered.

Parameters

specificationType

The name of supported military standard to use for the dictionary style.

Since

100.0

Deprecated:

100.6.0. The specification definition has been moved from the Runtime source code to an Arcade expression in the style file. These styles no longer reside in a default location and creating an AGSDictionarySymbolStyle from a specification is no longer supported with the new Arcade-based symbol styles.

Provided by category AGSDictionarySymbolStyle(AGSDeprecated).

dictionarySymbolStyleWithSpecificationType:styleURL:()

+ (instancetype) dictionarySymbolStyleWithSpecificationType:		(NSString *)	specificationType
styleURL:		(NSURL *)	styleURL

Creates a new Symbol dictionary object using the style file identified by the specification type or style location. This constructor is only valid for use with the older format style files. An AGSErrorCodeCommonInvalidArgument is raised if a newer format (Arcade-based) style is encountered.

Parameters

specificationType	The name of a supported military standard to use for the dictionary style.
styleURL	The physical location of an older format (non-Arcade based) .stylx file. You must provide the full path (e.g. ../../../mil2525c/mil2525c.stylx).

Since

100.1

Deprecated:

100.6.0. The specification definition has been moved from the Runtime source code to an Arcade expression in the style file. Creating an AGSDictionarySymbolStyle from a specification is no longer supported with the new military symbol styles.

Provided by category AGSDictionarySymbolStyle(AGSDeprecated).

initWithFileURL:()

- (instancetype) initWithFileURL:

(NSURL *)

fileURL

Creates a new dictionary symbol style object from the style file at the provided location.

Parameters

fileURL

The physical location the .stylx file.

Since

100.6

initWithName:()

- (instancetype) initWithName:

(NSString *)

name

Creates a new dictionary symbol style object from the name style file within the application bundle or shared documents directory.

Parameters

name	The name of the stylx file (excluding the .stylx file extension).

Since

100.6

Implements AGSSymbolStyle.

initWithSpecificationType:()

- (instancetype) initWithSpecificationType:

(NSString *)

specificationType

Creates a new dictionary symbol style object for a known military standard (such as Mil2525D). This constructor is only valid for use with the older format style files. An AGSErrorCodeCommonInvalidArgument is raised if a newer format (Arcade-based) style is encountered.

Parameters

specificationType

The name of supported military standard to use for the dictionary style.

Since

100.0

Deprecated:

100.6.0. The specification definition has been moved from the Runtime source code to an Arcade expression in the style file. These styles no longer reside in a default location and creating an AGSDictionarySymbolStyle from a specification is no longer supported with the new Arcade-based symbol styles.

Provided by category AGSDictionarySymbolStyle(AGSDeprecated).

initWithSpecificationType:styleURL:()

- (instancetype) initWithSpecificationType:		(NSString *)	specificationType
styleURL:		(NSURL *)	styleURL

Creates a new Symbol dictionary object using the style file identified by the specification type or style location. This constructor is only valid for use with the older format style files. An AGSErrorCodeCommonInvalidArgument is raised if a newer format (Arcade-based) style is encountered.

Parameters

specificationType	The name of a supported military standard to use for the dictionary style.
styleURL	The physical location of an older format (non-Arcade based) .stylx file. You must provide the full path (e.g. ../../../mil2525c/mil2525c.stylx).

Since

100.1

Deprecated:

100.6.0. The specification definition has been moved from the Runtime source code to an Arcade expression in the style file. Creating an AGSDictionarySymbolStyle from a specification is no longer supported with the new military symbol styles.

Provided by category AGSDictionarySymbolStyle(AGSDeprecated).

initWithURL:()

- (instancetype) initWithURL:

(NSURL *)

fileURL

Initialize a symbol style with the specified .stylx file

Parameters

fileURL

to a .stylx file on disk

Returns

a new initialized symbol style

Since

100

loadWithCompletion:()

- (void) loadWithCompletion: (nullable void(^)(NSError *__nullable error))  completion

requiredinherited

Loads data for the object asynchronously. The completion block is invoked upon completion.

You can call this method any number of times, however only one attempt is made to load the data. If it is already loading, it will just continue to load (i.e. not force a reload). If it has already loaded successfully, the completion block will be invoked right away. If it has already failed to load, the completion block will be invoked right away with error previously encountered. This method supports multiple callers and will call them all back on completion. However, each caller's completion block will be invoked once and only once.

Parameters

completion

block that is invoked when object loads successfully or fails to load. An error is passed to the block if the object fails to load.

Note

The completion block is always invoked on the main thread.

Since

100

See also

- cancelLoad to cancel loading

- retryLoadWithCompletion: to force reload

retryLoadWithCompletion:()

- (void) retryLoadWithCompletion: (nullable void(^)(NSError *__nullable error))  completion

requiredinherited

Tries to reload when an object has failed to load. This method should be called judiciously. It should be called when:

1. you didn't have network connectivity earlier when it failed and you want to retry now that you have connectivity
2. the server was down earlier when it failed and you want to retry
3. the request is taking too long and you want to cancel it and retry, in which case you will first call cancelLoad and then this method

If the data hasn't started loading, it will start loading. If it is already loading, it will just continue to load. If it has already loaded successfully, calls back right away. If it has already failed to load, tries again. This method supports multiple callers and will call them all back on completion. However, each caller's completion block will be invoked once and only once.

Parameters

completion

block that is invoked when object loads successfully or fails to load. An error is passed to the block if the object fails to load.

Note

The completion block is always invoked on the main thread.

Since

100

searchSymbolsWithParameters:completion:()

- (id<AGSCancelable>) searchSymbolsWithParameters:		(AGSSymbolStyleSearchParameters *)	searchParameters
completion:		(void(^)(NSArray< AGSSymbolStyleSearchResult * > *__nullable searchResults, NSError *__nullable error))	completion

Returns an array of AGSSymbolStyleSearchResult objects.

This asynchronous task searches for symbol primitives in the symbol style. The input searchParameters define what is searched for. For example, you could search for all symbols that have the tag "airspace". You can also set the match to be strict or not, which will determine if the search uses "=" or "LIKE" for each parameter.

Parameters

searchParameters	an object of type AGSSymbolStyleSearchParameters.
completion	Block that is invoked when the operation finishes. The searchResults parameter is populated if the operation completed successfully, otherwise the error parameter is populated.

See also

- defaultSearchParametersWithCompletion:

Since

100

symbolForKeys:completion:()

- (id<AGSCancelable>) symbolForKeys:		(NSArray< NSString * > *)	keys
completion:		(void(^)(AGSSymbol *__nullable symbol, NSError *__nullable error))	completion

Asynchronously returns a symbol based on the provided list of keys.

This function is useful for obtaining a single, multi-layer symbol from supplied keys. This is commonly used to create symbols and graphics on-the-fly. For example, assume XYZ style has a symbol with key "abc" which is the central symbol and another symbol with key "pqr", which could be the modifier/echelon placed at some offset from central geometry. So if you provide these two keys as attributes then symbol style will find and assemble a symbol accordingly. Once you have that symbol, you can apply it to a Graphic or Renderer, obtain its swatch image, or serialize to JSON. If the Symbol style is not loaded then starting this task will start the load cycle.

Parameters

keys	NSArray of strings. It is the list of keys required to obtain a symbol from the style.
completion	block that is invoked with the result

Since

100

symbolStyleWithName:()

+ (instancetype) symbolStyleWithName:

(NSString *)

name

Initialize a symbol style with the name of a .stylx file that is within the application bundle or shared documents directory.

Parameters

name	of the .stylx file (without the file extension) within the application bundle or shared documents directory.

Returns

a new initialized symbol style

Since

100

symbolStyleWithURL:()

+ (instancetype) symbolStyleWithURL:

(NSURL *)

fileURL

Initialize a symbol style with the specified .stylx file

Parameters

fileURL

to a .stylx file on disk

Returns

a new initialized symbol style

Since

100

symbolWithAttributes:completion:()

- (id<AGSCancelable>) symbolWithAttributes:		(NSDictionary< NSString *, id > *)	attributes
completion:		(void(^)(AGSSymbol *__nullable symbol, NSError *__nullable error))	completion

Creates a symbol based on the provided attributes. For example, with mil2525d, you may want to obtain a symbol where "symbolset" is 40, "modifier1" is "Incident Qualifier : Accident", "echelon" is "Army", and so on. All of these key/value pairs can be used to obtain the specific symbol that you need. Once you have that symbol, you can apply it to a graphic or renderer, obtain its swatch image, or serialize to JSON.

Parameters

attributes	used to create the symbol
completion	block that is invoked when the operation completes. The symbol is populated if the operation succeeds, else the error is populated if the operation fails.

Since

100

Property Documentation

configurationProperties

- (NSDictionary<NSString *, NSString *>*) configurationProperties

readwritenonatomiccopy

The NSDictionary of configuration settings and values used by the style. These settings are specific to the rule engine used by the AGSDictionarySymbolStyle.

Since

100.0

Deprecated:

100.6.0. These configuration settings are specific to the older style files and have no effect on the Arcade-based styles.

Provided by category AGSDictionarySymbolStyle(AGSDeprecated).

configurations

- (NSArray<AGSDictionarySymbolStyleConfiguration *>*) configurations

readnonatomiccopy

The collection of configuration settings for the custom dictionary style.

Since

100.6

credential

- (AGSCredential*) credential

readwritenonatomicstronginherited

Security credentials to access the remote resource. Only applicable if the resource is secured.

Since

100

dictionaryName

- (NSString*) dictionaryName

readnonatomiccopy

The name of the custom Arcade-based dictionary style. For older version style files, this is an empty string.

Since

100.6

loadError

- (NSError*) loadError

readnonatomicstronginherited

The error that was encountered during the most recent load operation. Will be nil if the operation succeeded.

Since

100

loadStatus

- (AGSLoadStatus) loadStatus

readrequirednonatomicassigninherited

Status of the load operation.

Since

100

requestConfiguration

- (AGSRequestConfiguration*) requestConfiguration

readwritenonatomicstronginherited

The AGSRequestConfiguration object which defines the behavior and policies to use when accessing the remote resource. The default will be nil. If it is nil the [AGSRequestConfiguration globalConfiguration] will be used.

Since

100

specificationType

- (NSString*) specificationType

readnonatomiccopy

The name of the dictionary (.stylx file), such as "Mil2525D".

Since

100.0

Deprecated:

100.6.0. With the new Arcade-based styles, the style specification logic is embedded in the style file itself. Since the logic is not internal to the Runtime code, functionality is not limited to the supported military specifications and can be customized for a variety of uses. Use the AGSDictionarySymbolStyle::dictionaryName property instead.

Provided by category AGSDictionarySymbolStyle(AGSDeprecated).

symbologyFieldNames

- (NSArray<NSString*>*) symbologyFieldNames

readnonatomiccopy

The string list of attributes used to construct a symbol from the AGSDictionarySymbolStyle. For example, mil2525d would include "identity", "symbolset", "symbolentity", and "modifier1", among many others. The newer Arcade-based styles define such attributes within the .stylx file as a JSON string.

Since

100.0

textFieldNames

- (NSArray<NSString*>*) textFieldNames

readnonatomiccopy

The string list of attributes used to obtain text values for display with a symbol from the AGSDictionarySymbolStyle. For example, mil2525d would include "combateffectiveness", "credibility", "reliability", and "staffcomment", among many others. The newer Arcade-based styles define such attributes within the .stylx file as a JSON string.

Since

100.0

URL

- (NSURL*) URL

readrequirednonatomicstronginherited

The URL of the remote resource.

Since

100