public void OnExecuting(object sender, ExecutionCancelEventArgs e)
{
IEngine engine = sender as IEngine;
CreateObjectCommand createObjectCommand = CreateObjectCommand.Evaluate(engine, e.Command);
if (createObjectCommand == null)
return;
IObjectService objectService = engine.GetService<IObjectService>();
ISchemaService schemaService = engine.GetService<ISchemaService>();
IDatabaseService databaseService = engine.GetService<IDatabaseService>();
databaseService.EnsureTransaction();
Type type = objectService.GetTypeByName(createObjectCommand.ClassName);
//Create a new object of the class
object obj = objectService.CreateObject(type);
//Set the properties of the new object
if (createObjectCommand.Values != null)
{
foreach (string propertyName in createObjectCommand.Values.Keys)
{
if (schemaService.HasProperty(createObjectCommand.ClassName, propertyName))
{
objectService.SetProperty(obj, propertyName, createObjectCommand.Values[propertyName]);
}
}
}
}
public void OnExecuting(object sender, ExecutionCancelEventArgs e)
{
IEngine engine = sender as IEngine;
DeleteObjectsCommand deleteObjectsCommand = DeleteObjectsCommand.Evaluate(engine, e.Command);
if (deleteObjectsCommand == null)
return;
IObjectService objectService = engine.GetService<IObjectService>();
IDatabaseService databaseService = engine.GetService<IDatabaseService>();
databaseService.EnsureTransaction();
Type type = objectService.GetTypeByName(deleteObjectsCommand.ClassName);
IList objects = null;
if (!string.IsNullOrEmpty(deleteObjectsCommand.Where))
objects = objectService.GetObjects(type, deleteObjectsCommand.Where);
else
objects = objectService.GetObjects(type, deleteObjectsCommand.Match);
if (objects != null)
{
foreach (object obj in objects)
{
objectService.DeleteObject(obj);
}
}
}
public void OnExecuting(object sender, ExecutionCancelEventArgs e)
{
IEngine engine = sender as IEngine;
CreateObjectCommand createObjectCommand = CreateObjectCommand.Evaluate(engine, e.Command);
if (createObjectCommand == null)
{
return;
}
IObjectService objectService = engine.GetService <IObjectService>();
ISchemaService schemaService = engine.GetService <ISchemaService>();
IDatabaseService databaseService = engine.GetService <IDatabaseService>();
databaseService.EnsureTransaction();
Type type = objectService.GetTypeByName(createObjectCommand.ClassName);
//Create a new object of the class
object obj = objectService.CreateObject(type);
//Set the properties of the new object
if (createObjectCommand.Values != null)
{
foreach (string propertyName in createObjectCommand.Values.Keys)
{
if (schemaService.HasProperty(createObjectCommand.ClassName, propertyName))
{
objectService.SetProperty(obj, propertyName, createObjectCommand.Values[propertyName]);
}
}
}
}
public void OnExecuting(object sender, ExecutionCancelEventArgs e)
{
IEngine engine = sender as IEngine;
ILoggingService loggingService = engine.GetService <ILoggingService>();
loggingService.WriteToLog(e.Command.ToString());
}
public void CreateProperty(CreatePropertyCommand createPropertyCommand, object sender, ExecutionCancelEventArgs e)
{
IEngine engine = sender as IEngine;
ISchemaService schemaService = engine.GetService<ISchemaService>();
IDatabaseService databaseService = engine.GetService<IDatabaseService>();
string className = createPropertyCommand.ClassName;
string propertyName = createPropertyCommand.Name;
string propertyType = createPropertyCommand.Type.ToString();
string columnName = createPropertyCommand.ColumnName;
DbType columnType = databaseService.GetDbType(createPropertyCommand.Type, createPropertyCommand.StringLength); ;
string tableName = schemaService.GetTableForClass(className);
//Add a property to the class
schemaService.CreateProperty(className, propertyName, propertyType);
//Set the nullability of the property
schemaService.SetPropertyMetaData(className, propertyName, PropertyMetaData.Nullable, createPropertyCommand.Nullable);
//Add a column to the table
schemaService.CreateColumn(tableName, columnName, columnType);
//Set the nullability of the column
schemaService.SetColumnMetaData(tableName, columnName, ColumnMetaData.Nullable, createPropertyCommand.Nullable);
//Map the property to the column in the schema
schemaService.MapPropertyToColumn(className, propertyName, tableName, columnName);
}
public void OnExecuting(object sender, ExecutionCancelEventArgs e)
{
CreateClassCommand createClassCommand = CreateClassCommand.Evaluate(e.Command);
if (createClassCommand == null)
{
return;
}
IEngine engine = sender as IEngine;
ISchemaService schemaService = engine.GetService <ISchemaService>();
string name = createClassCommand.Name;
string propertyName = "Id";
string propertyType = "System.Int32";
string columnName = name + "Id";
DbType columnType = DbType.Int32;
//Add the class to the schema
schemaService.CreateClass(name);
//Add a property to the class
schemaService.CreateProperty(name, propertyName, propertyType);
//Mark the property as an identity property
schemaService.SetPropertyMetaData(name, propertyName, PropertyMetaData.Identity, true);
//Mark the property as not nullable
schemaService.SetPropertyMetaData(name, propertyName, PropertyMetaData.Nullable, false);
//Mark the property as assigned by the data source
schemaService.SetPropertyMetaData(name, propertyName, PropertyMetaData.SourceAssigned, true);
//Add the table to the schema
schemaService.CreateTable(createClassCommand.TableName);
//Add a column to the table
schemaService.CreateColumn(createClassCommand.TableName, columnName, columnType);
//Mark the column as a primary key column
schemaService.SetColumnMetaData(createClassCommand.TableName, columnName, ColumnMetaData.PrimaryKey, true);
//Mark the column as not nullable
schemaService.SetColumnMetaData(createClassCommand.TableName, columnName, ColumnMetaData.Nullable, false);
//Mark the column as an auto increasing column
schemaService.SetColumnMetaData(createClassCommand.TableName, columnName, ColumnMetaData.AutoIncreaser, true);
//Map the class to the table in the schema
schemaService.MapClassToTable(name, createClassCommand.TableName);
//Map the property to the column in the schema
schemaService.MapPropertyToColumn(name, propertyName, createClassCommand.TableName, columnName);
}
public void OnExecuting(object sender, ExecutionCancelEventArgs e)
{
IEngine engine = sender as IEngine;
CreatePropertyCommand createPropertyCommand = CreatePropertyCommand.Evaluate(engine, e.Command);
if (createPropertyCommand == null)
return;
if (createPropertyCommand.Multiplicity == Multiplicity.None)
CreateProperty(createPropertyCommand, sender, e);
else
CreateRelationship(createPropertyCommand, sender, e);
}
public void OnExecuting(object sender, ExecutionCancelEventArgs e)
{
CreateClassCommand createClassCommand = CreateClassCommand.Evaluate(e.Command);
if (createClassCommand == null)
return;
IEngine engine = sender as IEngine;
ISchemaService schemaService = engine.GetService<ISchemaService>();
string name = createClassCommand.Name;
string propertyName = "Id";
string propertyType = "System.Int32";
string columnName = name + "Id";
DbType columnType = DbType.Int32;
//Add the class to the schema
schemaService.CreateClass(name);
//Add a property to the class
schemaService.CreateProperty(name, propertyName, propertyType);
//Mark the property as an identity property
schemaService.SetPropertyMetaData(name, propertyName, PropertyMetaData.Identity, true);
//Mark the property as not nullable
schemaService.SetPropertyMetaData(name, propertyName, PropertyMetaData.Nullable, false);
//Mark the property as assigned by the data source
schemaService.SetPropertyMetaData(name, propertyName, PropertyMetaData.SourceAssigned, true);
//Add the table to the schema
schemaService.CreateTable(createClassCommand.TableName);
//Add a column to the table
schemaService.CreateColumn(createClassCommand.TableName, columnName, columnType);
//Mark the column as a primary key column
schemaService.SetColumnMetaData(createClassCommand.TableName, columnName, ColumnMetaData.PrimaryKey, true);
//Mark the column as not nullable
schemaService.SetColumnMetaData(createClassCommand.TableName, columnName, ColumnMetaData.Nullable, false);
//Mark the column as an auto increasing column
schemaService.SetColumnMetaData(createClassCommand.TableName, columnName, ColumnMetaData.AutoIncreaser, true);
//Map the class to the table in the schema
schemaService.MapClassToTable(name, createClassCommand.TableName);
//Map the property to the column in the schema
schemaService.MapPropertyToColumn(name, propertyName, createClassCommand.TableName, columnName);
}
public void CreateRelationship(CreatePropertyCommand createPropertyCommand, object sender, ExecutionCancelEventArgs e)
{
//IDatabaseService databaseService = engine.GetService<IDatabaseService>();
//ISqlService sqlService = engine.GetService<ISqlService>();
//ISchemaService schemaService = engine.GetService<ISchemaService>();
////Begins a new transaction or gets the current transaction
//IDbTransaction transaction = databaseService.EnsureTransaction();
//string tableName = schemaService.GetTableForClass(createPropertyCommand.ClassName);
//DbType dbType = databaseService.GetDbType(createPropertyCommand.Type, createPropertyCommand.StringLength);
////Create the database table with the primary key column
//sqlService.CreateColumn(transaction, tableName, createPropertyCommand.ColumnName, dbType, createPropertyCommand.Nullable);
}
public void OnExecuting(object sender, ExecutionCancelEventArgs e)
{
CreateClassCommand createClassCommand = CreateClassCommand.Evaluate(e.Command);
if (createClassCommand == null)
return;
IEngine engine = sender as IEngine;
IDatabaseService databaseService = engine.GetService<IDatabaseService>();
ISqlService sqlService = engine.GetService<ISqlService>();
//Begins a new transaction or gets the current transaction
IDbTransaction transaction = databaseService.EnsureTransaction();
//Create the database table with the primary key column
sqlService.CreateTableWithPrimaryKeyColumn(transaction, createClassCommand.TableName, createClassCommand.Name + "Id");
}
public void OnExecuting(object sender, ExecutionCancelEventArgs e)
{
IEngine engine = sender as IEngine;
UpdateObjectsCommand updateObjectsCommand = UpdateObjectsCommand.Evaluate(engine, e.Command);
if (updateObjectsCommand == null)
return;
IObjectService objectService = engine.GetService<IObjectService>();
IDisplayService displayService = engine.GetService<IDisplayService>();
Type type = objectService.GetTypeByName(updateObjectsCommand.ClassName);
IList objects = objectService.GetObjects(type, updateObjectsCommand.Match);
foreach (object obj in objects)
displayService.Display(obj);
}
public void OnExecuting(object sender, ExecutionCancelEventArgs e)
{
CreateClassCommand createClassCommand = CreateClassCommand.Evaluate(e.Command);
if (createClassCommand == null)
{
return;
}
IEngine engine = sender as IEngine;
IDatabaseService databaseService = engine.GetService <IDatabaseService>();
ISqlService sqlService = engine.GetService <ISqlService>();
//Begins a new transaction or gets the current transaction
IDbTransaction transaction = databaseService.EnsureTransaction();
//Create the database table with the primary key column
sqlService.CreateTableWithPrimaryKeyColumn(transaction, createClassCommand.TableName, createClassCommand.Name + "Id");
}
public void OnExecuting(object sender, ExecutionCancelEventArgs e)
{
IEngine engine = sender as IEngine;
CreatePropertyCommand createPropertyCommand = CreatePropertyCommand.Evaluate(engine, e.Command);
if (createPropertyCommand == null)
{
return;
}
if (createPropertyCommand.Multiplicity == Multiplicity.None)
{
CreateProperty(createPropertyCommand, sender, e);
}
else
{
CreateRelationship(createPropertyCommand, sender, e);
}
}
public void OnExecuting(object sender, ExecutionCancelEventArgs e)
{
IEngine engine = sender as IEngine;
UpdateObjectsCommand updateObjectsCommand = UpdateObjectsCommand.Evaluate(engine, e.Command);
if (updateObjectsCommand == null)
{
return;
}
IObjectService objectService = engine.GetService <IObjectService>();
IDisplayService displayService = engine.GetService <IDisplayService>();
Type type = objectService.GetTypeByName(updateObjectsCommand.ClassName);
IList objects = objectService.GetObjects(type, updateObjectsCommand.Match);
foreach (object obj in objects)
{
displayService.Display(obj);
}
}
public void OnExecuting(object sender, ExecutionCancelEventArgs e)
{
IEngine engine = sender as IEngine;
DeleteObjectsCommand deleteObjectsCommand = DeleteObjectsCommand.Evaluate(engine, e.Command);
if (deleteObjectsCommand == null)
{
return;
}
IObjectService objectService = engine.GetService <IObjectService>();
IDatabaseService databaseService = engine.GetService <IDatabaseService>();
databaseService.EnsureTransaction();
Type type = objectService.GetTypeByName(deleteObjectsCommand.ClassName);
IList objects = null;
if (!string.IsNullOrEmpty(deleteObjectsCommand.Where))
{
objects = objectService.GetObjects(type, deleteObjectsCommand.Where);
}
else
{
objects = objectService.GetObjects(type, deleteObjectsCommand.Match);
}
if (objects != null)
{
foreach (object obj in objects)
{
objectService.DeleteObject(obj);
}
}
}
//void Execute(ITypedCommand typedCommand)
//{
// IList<ITypedCommand> typedCommands = new List<ITypedCommand>();
// typedCommands.Add(typedCommand);
// Execute(typedCommands);
//}
//void Execute(IList<ITypedCommand> typedCommands)
//{
// IList<Command> commands = new List<Command>();
// foreach (ITypedCommand typedCommand in typedCommands)
// commands.Add(typedCommand.ToCommand());
// Execute(commands);
//}
public void Execute(string text)
{
// Execute(Parser.Parse(text));
//}
//public void Execute(IList<Command> commands)
//{
IList <Command> commands = Parser.Parse(text);
EngineEventArgs engineArgs = new EngineEventArgs();
foreach (IExecutor executor in executors)
{
executor.OnBeginning(this, engineArgs);
}
try
{
IDictionary <Command, ExecutionCancelEventArgs> commandArgs = new Dictionary <Command, ExecutionCancelEventArgs>();
foreach (Command command in commands)
{
ExecutionCancelEventArgs args = new ExecutionCancelEventArgs(command);
commandArgs[command] = args;
foreach (IExecutor executor in executors)
{
executor.OnExecuting(this, args);
//If one executor raises the cancel flag,
//the rest of the execution for the command is canceled
if (args.Cancel)
{
break;
}
}
}
foreach (Command command in commands)
{
ExecutionCancelEventArgs cancelArgs = commandArgs[command];
if (!cancelArgs.Cancel)
{
ExecutionEventArgs args = new ExecutionEventArgs(command);
foreach (IExecutor executor in executors)
{
executor.OnExecuted(this, args);
}
}
}
//this is really not satisfactory:
//should be replaced with elevating two-phase commits, i.e tx scopes
foreach (IExecutor executor in executors)
{
executor.OnCommitting(this, engineArgs);
}
}
catch (Exception ex)
{
foreach (IExecutor executor in executors)
{
executor.OnAborting(this, engineArgs);
}
}
}
public void CreateRelationship(CreatePropertyCommand createPropertyCommand, object sender, ExecutionCancelEventArgs e)
{
//IDatabaseService databaseService = engine.GetService<IDatabaseService>();
//ISqlService sqlService = engine.GetService<ISqlService>();
//ISchemaService schemaService = engine.GetService<ISchemaService>();
////Begins a new transaction or gets the current transaction
//IDbTransaction transaction = databaseService.EnsureTransaction();
//string tableName = schemaService.GetTableForClass(createPropertyCommand.ClassName);
//DbType dbType = databaseService.GetDbType(createPropertyCommand.Type, createPropertyCommand.StringLength);
////Create the database table with the primary key column
//sqlService.CreateColumn(transaction, tableName, createPropertyCommand.ColumnName, dbType, createPropertyCommand.Nullable);
}
public void CreateProperty(CreatePropertyCommand createPropertyCommand, object sender, ExecutionCancelEventArgs e)
{
IEngine engine = sender as IEngine;
ISchemaService schemaService = engine.GetService <ISchemaService>();
IDatabaseService databaseService = engine.GetService <IDatabaseService>();
string className = createPropertyCommand.ClassName;
string propertyName = createPropertyCommand.Name;
string propertyType = createPropertyCommand.Type.ToString();
string columnName = createPropertyCommand.ColumnName;
DbType columnType = databaseService.GetDbType(createPropertyCommand.Type, createPropertyCommand.StringLength);;
string tableName = schemaService.GetTableForClass(className);
//Add a property to the class
schemaService.CreateProperty(className, propertyName, propertyType);
//Set the nullability of the property
schemaService.SetPropertyMetaData(className, propertyName, PropertyMetaData.Nullable, createPropertyCommand.Nullable);
//Add a column to the table
schemaService.CreateColumn(tableName, columnName, columnType);
//Set the nullability of the column
schemaService.SetColumnMetaData(tableName, columnName, ColumnMetaData.Nullable, createPropertyCommand.Nullable);
//Map the property to the column in the schema
schemaService.MapPropertyToColumn(className, propertyName, tableName, columnName);
}