global class BatchInativaContrato implements Database.Batchable<sObject>, Database.StateFul {

	String query;
	List<Contract> contratos;

	global BatchInativaContrato() {
		contratos = new List<Contract>();
	}

	global Database.QueryLocator start(Database.BatchableContext BC) {
		query = 'SELECT Id, Status FROM Contract WHERE EndDate <= TODAY';
		return Database.getQueryLocator(query);
	}

   	global void execute(Database.BatchableContext BC, List<sObject> scope) {

   		contratos = (List<Contract>) scope;

   		for(Contract c : contratos)
   			c.Status = 'Inativo';
	}

	global void finish(Database.BatchableContext BC) {
		if(contratos != null && contratos.size() > 0){
			Database.update(contratos, false);
	}


}