xgeek-net

Map<String, String> sampleMap = new Map<String, String>{
  'key1' => 'value1', 'key2' => 'value2', 'key3' => 'value3'
};

xgeek-net

Map<String, String> sampleMap = new Map<String, String>();
sampleMap.put('key1', 'value1');
sampleMap.put('key2', 'value2');
sampleMap.put('key3', 'value3');

xgeek-net

Map<Id, Account> accountMap = new Map<Id, Account>([SELECT Id, Name FROM Account LIMIT 10]);
List<Id> idList = new List<Id>(accountMap.keySet());

xgeek-net

Map<Id, Account> accountMap = new Map<Id, Account>([SELECT Id, Name FROM Account LIMIT 10]);
List<Id> idList = new List<Id>();
for(Account acc : accountMap.keySet()){
  idList.add(acc.Id);
}

xgeek-net

Map<Id, Account> accountMap = new Map<Id, Account>([SELECT Id, Name FROM Account LIMIT 10]);

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List<Account> accountList = [SELECT Id, Name FROM Account LIMIT 10];
Map<Id, Account> accountMap = new Map<Id, Account>();
if(accountList != null && !accountList.isEmpty()){
  for(Account acc : accountList){
    accountMap.put(acc.Id, acc);
  }
}

xgeek-net

System.debug(Logginglevel.INFO,'[INFO] Account : ' + account);
System.debug(Logginglevel.WARN,'[WARN] Account : ' + account);
System.debug(Logginglevel.ERROR,'[ERROR] Account : ' + account);
System.debug(Logginglevel.DEBUG ,'[DEBUG] Account : ' + account);

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/******* 1ST TRANSACTION  *********/
USER_DEBUG|[19]|DEBUG|>>> execute start at 2017/01/08 04:48:43
USER_DEBUG|[28]|DEBUG|>>> publicValue : 1
USER_DEBUG|[29]|DEBUG|>>> privateValue : 1
USER_DEBUG|[30]|DEBUG|>>> execute end at 2017/01/08 04:48:48

/******* 2ND TRANSACTION  *********/
USER_DEBUG|[19]|DEBUG|>>> execute start at 2017/01/08 04:48:48
USER_DEBUG|[28]|DEBUG|>>> publicValue : 2
USER_DEBUG|[29]|DEBUG|>>> privateValue : 2

xgeek-net

global class SampleBatchWithState implements Database.Batchable<sObject>, Database.Stateful {

  public Integer publicValue;
  private Integer privateValue;
  
  global SampleBatchWithState() {
    publicValue = 0;
    privateValue = 0;
  }

xgeek-net

global class SampleBatch implements Database.Batchable<sObject> {
  
  // The batch job starts
  global Database.Querylocator start(Database.BatchableContext bc){
    String query = 'SELECT Id, Name FROM BatchData__c LIMIT 1000';
    return Database.getQuerylocator(query);
  } 
  
  // The batch job executes and operates on one batch of records
  global void execute(Database.BatchableContext bc, List<sObject> scope){