Salesforce annotations

@future

• Denotes methods that are executed asynchronously.

global class MyFutureClass {
 @future
 static void myMethod(String a, Integer i) {
  System.debug('Method called with: ' + a +' and ' + i);
  // do callout, or execute
  // other long-running code
 }
}

@isTest

• Denotes classes that only contain code used for testing your application. These classes don’t count against the total amount of Apex used by your organization.

@isTest
private class MyTest {
 // Methods for testing
}

@isTest(OnInstall=true)

• Denotes a test class or test method that executes on package installation

@isTest(OnInstall=true)
private class TestClass {
}

@isTest(SeeAllData=true)

• Denotes a test class or test method that has access to all data in the organization, including pre-existing data that the test didn't create. The default is false

@isTest(SeeAllData=true)
private class TestClass {
}

@deprecated

• Denotes methods, classes, exceptions, enums, interfaces, or variables that can no longer be referenced in subsequent releases of the managed package in which they reside

@deprecated
public void limitedShelfLife() {
}

@readOnly

• Denotes methods that can perform queries unrestricted by the number of returned rows limit for a request

@readOnly
private void doQuery() {
}

@remoteAction

• Denotes Apex controller methods that JavaScript code can call from a Visualforce page via JavaScript remoting. The method must be static and either public or global.

@remoteAction
global static String getId(String s) {
}

@restResource

• Denotes a class that is available as a REST resource. The class must be global. The urlMapping parameter is your resource's name and is relative to https:// instance. salesforce. com/services/ apexrest/.

@restResource(urlMapping='/Widget/*')
global with sharing class MyResource() {
}

@httpGet,
@httpPost,
@httpPatch,
@httpPut,
@httpDelete

• Denotes a REST method in a class annotated with @restResource that the runtime invokes when a client sends an HTTPGET, POST, PATCH, PUT, orDELETE respectively. The methods defined with any of these annotations must be global and static.

@httpGet
global static MyWidget__c doGet()
{
}
@httpPost
global static void doPost() {
}
@httpDelete
global static void doDelete() {
}