/// <summary>
/// Constructs a trigger with the given information.
/// </summary>
/// <param name="triggerInfo">The object defining the information
/// of this trigger.</param>
/// <exception cref="ArgumentNullException">
/// If the provided <paramref name="triggerInfo"/> is <c>null</c>.
/// </exception>
public Trigger(TriggerInfo triggerInfo)
{
if (triggerInfo == null)
throw new ArgumentNullException("triggerInfo");
TriggerInfo = triggerInfo;
}
public static void CreateTrigger(this IUserSession session, TriggerInfo triggerInfo)
{
var manager = session.Transaction.GetTriggerManager();
if (manager == null)
return;
manager.CreateTrigger(triggerInfo);
}
public bool AlterTrigger(TriggerInfo triggerInfo)
{
if (!DropTrigger(triggerInfo.TriggerName))
return false;
CreateTrigger(triggerInfo);
return true;
}
internal TriggerBody(TriggerInfo triggerInfo)
{
if (triggerInfo == null)
throw new ArgumentNullException("triggerInfo");
TriggerInfo = triggerInfo;
statements = new List<SqlStatement>();
}
/// <summary>
/// Constructs a trigger with the given information.
/// </summary>
/// <param name="triggerInfo">The object defining the information
/// of this trigger.</param>
/// <exception cref="ArgumentNullException">
/// If the provided <paramref name="triggerInfo"/> is <c>null</c>.
/// </exception>
public Trigger(TriggerInfo triggerInfo)
{
if (triggerInfo == null)
{
throw new ArgumentNullException("triggerInfo");
}
TriggerInfo = triggerInfo;
}
public bool AlterTrigger(TriggerInfo triggerInfo)
{
if (!DropTrigger(triggerInfo.TriggerName))
{
return(false);
}
CreateTrigger(triggerInfo);
return(true);
}
public static void CreateTrigger(this ISession session, TriggerInfo triggerInfo)
{
var manager = session.Transaction.GetTriggerManager();
if (manager == null)
{
return;
}
manager.CreateTrigger(triggerInfo);
}
internal TriggerBody(TriggerInfo triggerInfo)
{
if (triggerInfo == null)
{
throw new ArgumentNullException("triggerInfo");
}
TriggerInfo = triggerInfo;
statements = new List <SqlStatement>();
}
public static void DeclareTrigger(this IContext context, TriggerInfo triggerInfo)
{
var current = context;
while (current != null) {
if (current is ITriggerScope) {
var scope = (ITriggerScope) current;
scope.TriggerManager.CreateTrigger(triggerInfo);
return;
}
current = current.Parent;
}
throw new InvalidOperationException("No trigger scope found in context");
}
public static void DeclareTrigger(this IContext context, TriggerInfo triggerInfo)
{
var current = context;
while (current != null)
{
if (current is ITriggerScope)
{
var scope = (ITriggerScope)current;
scope.TriggerManager.CreateTrigger(triggerInfo);
return;
}
current = current.Parent;
}
throw new InvalidOperationException("No trigger scope found in context");
}
public void CreateTrigger(TriggerInfo triggerInfo)
{
if (!transaction.TableExists(SystemSchema.TriggerTableName))
{
return;
}
try {
var args = new TriggerArgument(triggerInfo.Arguments.ToArray());
var binArgs = SerializeArguments(args);
var schema = triggerInfo.TriggerName.ParentName;
var name = triggerInfo.TriggerName.Name;
var type = (int)triggerInfo.TriggerType;
var onTable = triggerInfo.TableName == null ? null : triggerInfo.TableName.FullName;
var procedureName = triggerInfo.ProcedureName != null ? triggerInfo.ProcedureName.FullName : null;
var action = (int)triggerInfo.EventType;
// TODO: if the trigger has a body, create a special procedure and set the name
// Insert the entry into the trigger table,
var table = transaction.GetMutableTable(SystemSchema.TriggerTableName);
var row = table.NewRow();
row.SetValue(0, DataObject.String(schema));
row.SetValue(1, DataObject.String(name));
row.SetValue(2, DataObject.Integer(type));
row.SetValue(3, DataObject.String(onTable));
row.SetValue(4, DataObject.Integer(action));
row.SetValue(5, DataObject.String(procedureName));
row.SetValue(6, DataObject.Binary(binArgs));
table.AddRow(row);
InvalidateTriggerCache();
transaction.Registry.RegisterEvent(new ObjectCreatedEvent(triggerInfo.TriggerName, DbObjectType.Trigger));
tableModified = true;
} catch (Exception) {
// TODO: use a specialized exception
throw;
}
}
void ITriggerManager.CreateTrigger(TriggerInfo triggerInfo)
{
CreateTrigger((CallbackTriggerInfo)triggerInfo);
}
public void CreateTrigger(TriggerInfo triggerInfo)
{
if (!transaction.TableExists(SystemSchema.TriggerTableName))
return;
try {
var args = triggerInfo.Arguments.ToArray();
var binArgs = SqlExpression.Serialize(args);
var schema = triggerInfo.TriggerName.ParentName;
var name = triggerInfo.TriggerName.Name;
var type = (int) triggerInfo.TriggerType;
var onTable = triggerInfo.TableName == null ? null : triggerInfo.TableName.FullName;
var procedureName = triggerInfo.ProcedureName != null ? triggerInfo.ProcedureName.FullName : null;
var action = (int) triggerInfo.EventType;
// TODO: if the trigger has a body, create a special procedure and set the name
// Insert the entry into the trigger table,
var table = transaction.GetMutableTable(SystemSchema.TriggerTableName);
var row = table.NewRow();
row.SetValue(0, DataObject.String(schema));
row.SetValue(1, DataObject.String(name));
row.SetValue(2, DataObject.Integer(type));
row.SetValue(3, DataObject.String(onTable));
row.SetValue(4, DataObject.Integer(action));
row.SetValue(5, DataObject.String(procedureName));
row.SetValue(6, DataObject.Binary(binArgs));
table.AddRow(row);
InvalidateTriggerCache();
transaction.Registry.RegisterEvent(new ObjectCreatedEvent(triggerInfo.TriggerName, DbObjectType.Trigger));
tableModified = true;
} catch (Exception) {
// TODO: use a specialized exception
throw;
}
}
public bool AlterTrigger(TriggerInfo triggerInfo)
{
throw new NotImplementedException();
}
public bool AlterTrigger(TriggerInfo triggerInfo)
{
throw new NotImplementedException();
}
public bool CanFire(TableEvent tableEvent)
{
return(TriggerInfo.CanFire(tableEvent));
}
void ITriggerManager.RegisterTrigger(TriggerInfo triggerInfo)
{
CreateTrigger(triggerInfo);
}
//public static void FireTrigger(this IQueryContext context, TableEventContext tableEvent) {
// var tableName = tableEvent.Table.FullName;
// var eventType = tableEvent.EventType;
// try {
// var triggers = context.Session.FindTriggers(tableName, eventType);
// foreach (var trigger in triggers) {
// try {
// trigger.Invoke(tableEvent);
// var oldRowId = tableEvent.OldRowId;
// var newRow = tableEvent.NewRow;
// context.FireTrigger(trigger.TriggerName, tableName, eventType, oldRowId, newRow);
// } catch (Exception ex) {
// context.RegisterTriggerError(trigger, ex);
// }
// }
// } catch (TableEventException ex) {
// context.RegisterError(ex);
// throw;
// } catch (Exception ex) {
// context.RegisterTableEventError(tableEvent, ex);
// throw new TableEventException(tableEvent, ex);
// }
//}
//private static void RegisterTriggerError(this IQueryContext context, Trigger trigger, Exception error) {
// context.RegisterError(new TriggerException(trigger, error));
//}
//private static void RegisterTableEventError(this IQueryContext context, TableEventContext @event, Exception error) {
// context.RegisterError(new TableEventException(@event, error));
//}
public static void CreateTrigger(this IQueryContext context, TriggerInfo triggerInfo)
{
context.Session().CreateTrigger(triggerInfo);
}
void ITriggerManager.CreateTrigger(TriggerInfo triggerInfo)
{
CreateTrigger((CallbackTriggerInfo) triggerInfo);
}
public void CreateTrigger(TriggerInfo triggerInfo)
{
if (!transaction.TableExists(TriggerTableName))
{
return;
}
var schema = triggerInfo.TriggerName.ParentName;
var name = triggerInfo.TriggerName.Name;
var onTable = triggerInfo.TableName.FullName;
var time = (int)triggerInfo.EventTime;
var action = (int)triggerInfo.EventType;
int type;
if (triggerInfo is ProcedureTriggerInfo)
{
type = ProcedureType;
}
else if (triggerInfo is PlSqlTriggerInfo)
{
type = PlSqlType;
}
else
{
throw new ArgumentException("The specified trigger info is invalid.");
}
// Insert the entry into the trigger table,
var table = transaction.GetMutableTable(TriggerTableName);
var row = table.NewRow();
row.SetValue(0, Field.String(schema));
row.SetValue(1, Field.String(name));
row.SetValue(2, Field.Integer(type));
row.SetValue(3, Field.String(onTable));
row.SetValue(4, Field.Integer(time));
row.SetValue(5, Field.Integer(action));
if (type == ProcedureType)
{
var procInfo = (ProcedureTriggerInfo)triggerInfo;
var args = new TriggerArgument(procInfo.Arguments);
var binArgs = SerializeArguments(args);
var procedureName = procInfo.ProcedureName.FullName;
row.SetValue(6, Field.String(procedureName));
row.SetValue(7, Field.Binary(binArgs));
}
else if (type == PlSqlType)
{
var plsqlInfo = (PlSqlTriggerInfo)triggerInfo;
var body = Field.Binary(SqlBinary.ToBinary(plsqlInfo.Body));
row.SetValue(8, body);
}
row.SetValue(9, Field.TinyInt((byte)triggerInfo.Status));
table.AddRow(row);
InvalidateTriggerCache();
transaction.OnObjectCreated(DbObjectType.Trigger, triggerInfo.TriggerName);
tableModified = true;
}
//public static void FireTrigger(this IQueryContext context, TableEventContext tableEvent) {
// var tableName = tableEvent.Table.FullName;
// var eventType = tableEvent.EventType;
// try {
// var triggers = context.Session.FindTriggers(tableName, eventType);
// foreach (var trigger in triggers) {
// try {
// trigger.Invoke(tableEvent);
// var oldRowId = tableEvent.OldRowId;
// var newRow = tableEvent.NewRow;
// context.FireTrigger(trigger.TriggerName, tableName, eventType, oldRowId, newRow);
// } catch (Exception ex) {
// context.RegisterTriggerError(trigger, ex);
// }
// }
// } catch (TableEventException ex) {
// context.RegisterError(ex);
// throw;
// } catch (Exception ex) {
// context.RegisterTableEventError(tableEvent, ex);
// throw new TableEventException(tableEvent, ex);
// }
//}
//private static void RegisterTriggerError(this IQueryContext context, Trigger trigger, Exception error) {
// context.RegisterError(new TriggerException(trigger, error));
//}
//private static void RegisterTableEventError(this IQueryContext context, TableEventContext @event, Exception error) {
// context.RegisterError(new TableEventException(@event, error));
//}
public static void CreateTrigger(this IQueryContext context, TriggerInfo triggerInfo)
{
context.Session().CreateTrigger(triggerInfo);
}
public void CreateTrigger(TriggerInfo triggerInfo)
{
if (!transaction.TableExists(TriggerTableName))
return;
var schema = triggerInfo.TriggerName.ParentName;
var name = triggerInfo.TriggerName.Name;
var onTable = triggerInfo.TableName.FullName;
var time = (int) triggerInfo.EventTime;
var action = (int) triggerInfo.EventType;
int type;
if (triggerInfo is ProcedureTriggerInfo) {
type = ProcedureType;
} else if (triggerInfo is PlSqlTriggerInfo) {
type = PlSqlType;
} else {
throw new ArgumentException("The specified trigger info is invalid.");
}
// Insert the entry into the trigger table,
var table = transaction.GetMutableTable(TriggerTableName);
var row = table.NewRow();
row.SetValue(0, Field.String(schema));
row.SetValue(1, Field.String(name));
row.SetValue(2, Field.Integer(type));
row.SetValue(3, Field.String(onTable));
row.SetValue(4, Field.Integer(time));
row.SetValue(5, Field.Integer(action));
if (type == ProcedureType) {
var procInfo = (ProcedureTriggerInfo) triggerInfo;
var args = new TriggerArgument(procInfo.Arguments);
var binArgs = SerializeArguments(args);
var procedureName = procInfo.ProcedureName.FullName;
row.SetValue(6, Field.String(procedureName));
row.SetValue(7, Field.Binary(binArgs));
} else if (type == PlSqlType) {
var plsqlInfo = (PlSqlTriggerInfo) triggerInfo;
var body = Field.Binary(SqlBinary.ToBinary(plsqlInfo.Body));
row.SetValue(8, body);
}
row.SetValue(9, Field.TinyInt((byte) triggerInfo.Status));
table.AddRow(row);
InvalidateTriggerCache();
transaction.OnObjectCreated(DbObjectType.Trigger, triggerInfo.TriggerName);
tableModified = true;
}
void ITriggerManager.RegisterTrigger(TriggerInfo triggerInfo)
{
CreateTrigger(triggerInfo);
}
void ITriggerManager.CreateTrigger(TriggerInfo triggerInfo)
{
CreateTrigger(triggerInfo);
}
public void CreateTrigger(TriggerInfo triggerInfo)
{
throw new NotImplementedException();
}
void ITriggerManager.CreateTrigger(TriggerInfo triggerInfo)
{
CreateTrigger(triggerInfo);
}
