Trigger Context

TriggerContext

/**
 * This class holds useful information about a trigger event that is taking
 * place so that handler classes can make use of this data and don't have to
 * pass any individual values.
 */
public class TriggerContext {

    public final String objectName;

    public final Boolean isBefore;
    public final Boolean isAfter;

    public final Boolean isInsert;
    public final Boolean isUpdate;
    public final Boolean isDelete;

    public final List<sObject> oldList;
    public final List<sObject> newList;
    public final Map<Id,sObject> oldMap;
    public final Map<id,sObject> newMap;

    public final Integer size;

    public TriggerContext(String objectName) {
        this(objectName, Trigger.isBefore, Trigger.isAfter, Trigger.isInsert, Trigger.isUpdate, Trigger.isDelete, Trigger.old, Trigger.new, Trigger.oldMap, Trigger.newMap, Trigger.size);
    }

    public TriggerContext(String objectName, Boolean isBefore, Boolean isAfter,
            Boolean isInsert, Boolean isUpdate, Boolean isDelete,
            List<sObject> oldList, List<sObject> newList, Map<Id,sObject> oldMap, Map<Id,sObject> newMap, Integer size)
    {
        this.objectName = objectName;
        this.isBefore = isBefore;
        this.isAfter = isAfter;
        this.isInsert = isInsert;
        this.isUpdate = isUpdate;
        this.isDelete = isDelete;
        this.oldList = oldList;
        this.newList = newList;
        this.oldMap = oldMap;
        this.newMap = newMap;
        this.size = size;
    }

    public String asString() {
        return 'TriggerContext{objectName='+objectName+',size='+size+',isBefore='+isBefore+',isAfter='+isAfter+',isInsert='+isInsert+',isUpdate='+isUpdate+',isDelete='+isDelete+'}';
    }
}