AGSIdentifyTask Class Reference

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Description

This task performs identify operations on an ArcGIS Server map service. An identify operation involves finding features in a map near a given a search location. The search can be conducted on all layers in the map service, just the visible layers, or just the top layer.

An identify task needs a URL to a REST resource that represents a Map Service. For example, http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Population_World/MapServer

See also:

Conceptual Doc: Using an Identify Task

Sample: Identify Task

Since:

1.0

Inheritance diagram for AGSIdentifyTask:

List of all members.

Public Member Functions
(NSOperation *)	- executeWithParameters:
(id)	- initWithURL:
(id)	- initWithURL:credential:
Static Public Member Functions
(id)	+ identifyTaskWithURL:
(id)	+ identifyTaskWithURL:credential:
Properties
AGSCredential *	credential
id< AGSIdentifyTaskDelegate >	delegate
NSURL *	URL

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Member Function Documentation

- (NSOperation *) executeWithParameters:

(AGSIdentifyParameters *)

params

Performs an identify operation on the map service using the specified parameters. The delegate will be notified when the operation completes or if an error is encountered.

It relies on the Identify operation of the REST resource.

Parameters:

params

Specifies the parameters for executing the search.

Returns:

NSOperation for current execute request.

Since:

1.0

See also:

AGSIdentifyTaskDelegate

+ (id) identifyTaskWithURL:

(NSURL *)

url

Initialize an autoreleased identify task.

Parameters:

url

URL to a map service resource in the ArcGIS Server REST Services Directory.

Returns:

A new, autoreleased, identify task object.

Since:

1.0

+ (id) identifyTaskWithURL:		(NSURL *)	url
credential:		(AGSCredential *)	cred

Initialize autoreleased identify task with credential.

Parameters:

	url	URL to a map service resource in the ArcGIS Server REST Services Directory.
	cred	AGSCredential for accessing a secure identify task.

Returns:

A new, autoreleased, identify task object.

Since:

1.0

- (id) initWithURL:

(NSURL *)

url

Initialize the task.

Parameters:

url

URL to a task resource in the ArcGIS Server REST Services Directory.

Returns:

A new task object.

Since:

1.0

- (id) initWithURL:		(NSURL *)	url
credential:		(AGSCredential *)	cred

Initialize the task with a URL and credential to a secured resource.

Parameters:

	url	URL to a task resource in the ArcGIS Server REST Services Directory.
	cred	AGSCredential used to access secure resource.

Returns:

A new task object.

Since:

1.0

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Property Documentation

- (AGSCredential*) credential [read, write, copy, inherited]

The credential to be used to access secured resources.

Since:

1.0

Reimplemented from <AGSSecuredResource>.

- (id<AGSIdentifyTaskDelegate>) delegate [read, write, assign]

Delegate to be notified when the task completes successfully or encounters an error.

Since:

1.0

- (NSURL*) URL [read, copy, inherited]

URL to a task resource in the ArcGIS Server REST Services Directory.

Since:

1.0