//
// DoGetSchemaItems + support methods
//
#region protected override IEnumerable<DBSchemaItemRef> DoGetSchemaItems(DBSchemaTypes types)
protected override IEnumerable <DBSchemaItemRef> DoGetSchemaItems(DBSchemaTypes types)
{
List <DBSchemaItemRef> items = new List <DBSchemaItemRef>();
using (DbConnection con = this.Database.CreateConnection())
{
con.Open();
if (IsSchemaType(types, DBSchemaTypes.Table))
{
this.LoadTableRefs(con, items);
}
if (IsSchemaType(types, DBSchemaTypes.View))
{
this.LoadViewRefs(con, items);
}
if (IsSchemaType(types, DBSchemaTypes.Index))
{
this.LoadIndexRefs(con, items);
}
if (IsSchemaType(types, DBSchemaTypes.StoredProcedure))
{
this.LoadSprocRefs(con, items);
}
}
return(items);
}
public override void BeginCheckExists(DBSchemaTypes type, string owner, string name)
{
if (type == DBSchemaTypes.StoredProcedure)
{
throw new NotSupportedException(string.Format(Errors.DatabaseEngineDoesntSupportType, type));
}
}
public override void BeginCreate(DBSchemaTypes type, string owner, string name, string options, bool checknotexists)
{
if (type == DBSchemaTypes.StoredProcedure)
{
throw new NotSupportedException(string.Format(Errors.DatabaseEngineDoesntSupportType, type));
}
bool isconstraint = this.IsConstraintType(type);
if (isconstraint && !string.IsNullOrEmpty(name))
{
this.WriteRawSQLString("CONSTRAINT ");
this.BeginIdentifier();
this.WriteObjectName(name);
this.EndIdentifier();
this.WriteSpace();
}
this.BeginCreate(type, options);
if (checknotexists)
{
this.WriteCheckNotExists(type, owner, name);
}
if (!isconstraint)
{
this.WriteSourceTable(owner, name, string.Empty);
}
}
public override void BeginCreate(DBSchemaTypes type, string owner, string name, string options, bool checknotexists)
{
if (type == DBSchemaTypes.StoredProcedure)
{
throw new NotSupportedException(string.Format(Errors.DatabaseEngineDoesntSupportType, type));
}
if (checknotexists)
{
throw new InvalidOperationException(String.Format(Errors.DBDoesntSupportIfExistsForThisType, "MS Access", type));
}
if (type == DBSchemaTypes.ForeignKey && !string.IsNullOrEmpty(name))
{
this.WriteRawSQLString("CONSTRAINT ");
this.BeginIdentifier();
this.WriteObjectName(name);
this.EndIdentifier();
this.WriteSpace();
}
this.BeginCreate(type, options);
if (checknotexists)
{
base.EndCheckNotExists(type, owner, name);
}
if (type != DBSchemaTypes.ForeignKey)
{
this.WriteSourceTable(owner, name, string.Empty);
}
}
public override void BeginCheckNotExists(DBSchemaTypes type, string owner, string name)
{
if (type == DBSchemaTypes.Index || type == DBSchemaTypes.View)
{
throw new ArgumentOutOfRangeException("checknotexisits", string.Format(Errors.DBDoesntSupportIfExistsForThisType, "MySQL", type));
}
}
//
// .ctor
//
#region internal protected DBDatabaseProperties(...)
/// <summary>
/// Creates a new instance of the DBDatabaseProperties
/// </summary>
/// <param name="databaseName"></param>
/// <param name="productName"></param>
/// <param name="productLevel"></param>
/// <param name="serverEdition"></param>
/// <param name="parameterFormat"></param>
/// <param name="version"></param>
/// <param name="supports"></param>
/// <param name="caseSensitive"></param>
/// <param name="layout"></param>
/// <param name="supportedDbTypes"></param>
/// <param name="supportedTopTypes"></param>
internal protected DBDatabaseProperties(string databaseName,
string productName,
string productLevel,
string serverEdition,
string parameterFormat,
Version version,
DBSchemaTypes supports,
bool caseSensitive,
DBParameterLayout layout,
System.Data.DbType[] supportedDbTypes,
TopType[] supportedTopTypes,
Schema.DBSchemaInformation schemaInfo,
TypedOperationCollection unsupportedOps)
{
this._vers = version;
this._edition = serverEdition;
this._productlevel = productLevel;
this._name = productName;
this._paramformat = parameterFormat;
this.SupportedSchemas = supports;
this.CaseSensitiveNames = caseSensitive;
this.ParameterLayout = layout;
this.SupportedDbTypes = supportedDbTypes;
this.SupportedTopTypes = supportedTopTypes;
this._schemainfo = schemaInfo;
this._unsupportedOps = unsupportedOps;
}
/// <summary>
/// Creates a new schema item with the specified values
/// </summary>
/// <param name="type"></param>
/// <param name="schema"></param>
/// <param name="name"></param>
public DBSchemaItemRef(DBSchemaTypes type, string schema, string name)
: this(type, string.Empty, schema, name)
{
this.Type = type;
this.Schema = schema;
this.Name = name;
}
/// <summary>
/// Creates a new schema item with the specified values
/// </summary>
/// <param name="type"></param>
/// <param name="catalog"></param>
/// <param name="schema"></param>
/// <param name="name"></param>
public DBSchemaItemRef(DBSchemaTypes type, string catalog, string schema, string name)
{
this.Type = type;
this.Catalog = catalog;
this.Schema = schema;
this.Name = name;
}
//
// public properties
//
#region public DBSchemaItem this[DBSchemaTypes type, string owner, string name] {get;}
/// <summary>
/// Gets the specifed DBSchemaItem in this collection that
/// has the type, owner and name specified
/// </summary>
/// <param name="type"></param>
/// <param name="owner"></param>
/// <param name="name"></param>
/// <returns></returns>
public DBSchemaItem this[DBSchemaTypes type, string owner, string name]
{
get
{
DBSchemaItemRef iref = new DBSchemaItemRef(type, owner, name);
return(this[iref]);
}
}
/// <summary>
/// Calculates and returns the integer hashcode which
/// should be unique for any combination of type and operation
/// </summary>
/// <param name="type"></param>
/// <param name="op"></param>
/// <returns></returns>
public static int GetHashCode(DBSchemaTypes type, DBSchemaOperation op)
{
int val = (int)type;
val = val << 16;
val += (int)op;
return(val);
}
public DBSchemaInfoLookup GetListLookup(DBSchemaTypes type)
{
DBSchemaInfoLookup value;
if (!_listlookup.TryGetValue(type, out value))
{
value = null;
}
return(value);
}
public override void EndCreate(DBSchemaTypes type, bool checknotexists)
{
if (type == DBSchemaTypes.Table)
{
this.WriteRawSQLString(" ENGINE = ");
this.WriteObjectName(this.TableEngine);
}
this.DecrementStatementDepth();
}
public override void EndCreate(DBSchemaTypes type, bool checknotexists)
{
//Special case where the CREATE VIEW .. AS cannot have parenthese after - causes exception
if (type == DBSchemaTypes.View)
{
this.IncrementStatementDepth();
}
base.EndCreate(type, checknotexists);
}
/// <summary>
/// Extends to support SEQUENCEs
/// </summary>
/// <param name="type"></param>
protected override void WriteDropType(DBSchemaTypes type)
{
if (type == DBSchemaTypes.Sequence)
{
this.WriteDropType("SEQUENCE");
}
else
{
base.WriteDropType(type);
}
}
/// <summary>
/// Check if this database supports a specific operation on the database.
/// </summary>
/// <param name="schema"></param>
/// <param name="op"></param>
/// <returns></returns>
public bool CheckSupports(DBSchemaTypes schema, DBSchemaOperation op)
{
if (this.UnsupportedOps.Contains(schema, op))
{
return(false);
}
else
{
return(CheckSupports(schema));
}
}
/// <summary>
/// Extends to Support SEQUENCEs
/// </summary>
/// <param name="type"></param>
/// <param name="options"></param>
/// <param name="isconstraint"></param>
protected override void WriteCreateType(DBSchemaTypes type, string options, bool isconstraint)
{
if (type == DBSchemaTypes.Sequence)
{
string native = "SEQUENCE";
this.WriteCreateType(native, options, isconstraint);
}
else
{
base.WriteCreateType(type, options, isconstraint);
}
}
public override void BeginDropStatement(DBSchemaTypes type, string owner, string name, bool checkExists)
{
if (type == DBSchemaTypes.StoredProcedure)
{
throw new NotSupportedException(string.Format(Errors.DatabaseEngineDoesntSupportType, type));
}
if (checkExists)
{
throw new InvalidOperationException(String.Format(Errors.DBDoesntSupportIfExistsForThisType, "MS Access", type));
}
base.BeginDropStatement(type, owner, name, checkExists);
}
/// <summary>
/// Returns true if this collection contains a TypedOperation that matches the parameters
/// </summary>
/// <param name="type"></param>
/// <param name="operation"></param>
/// <returns></returns>
public bool Contains(DBSchemaTypes type, DBSchemaOperation operation)
{
TypedOperation value;
int hash = TypedOperation.GetHashCode(type, operation);
if (_ops.TryGetValue(hash, out value))
{
return(true);
}
else
{
return(false);
}
}
//
// public methods
//
#region public IEnumerable<DBSchemaItem> GetAllItemsOfType(DBSchemaTypes type)
/// <summary>
/// Gets All the DBSchemaItems in the collection that are the specified type
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
public IEnumerable <DBSchemaItem> GetAllItemsOfType(DBSchemaTypes type)
{
List <DBSchemaItem> list = new List <DBSchemaItem>();
foreach (DBSchemaItem item in this)
{
if ((item.Type & type) > 0)
{
list.Add(item);
}
}
return(list.AsReadOnly());
}
public override void BeginCreate(DBSchemaTypes type, string options)
{
if (type == DBSchemaTypes.StoredProcedure)
{
throw new NotSupportedException(string.Format(Errors.DatabaseEngineDoesntSupportType, type));
}
base.BeginCreate(type, options);
//Special case where the CREATE VIEW .. AS cannot have parenthese after - causes exception
if (type == DBSchemaTypes.View)
{
this.DecrementStatementDepth();
}
}
private void FillSchema(Dictionary <string, Dictionary <DBSchemaTypes, List <DBSchemaItemRef> > > byschema)
{
Dictionary <DBSchemaTypes, List <DBSchemaItemRef> > schema;
List <DBSchemaItemRef> items = new List <DBSchemaItemRef>();
IEnumerable <DBSchemaItemRef> tbls = FillAllReferencesAndReturnTables(items);
foreach (DBSchemaItemRef item in items)
{
System.Diagnostics.Debug.WriteLine(item.ToString());
string schemaname;
if (string.IsNullOrEmpty(item.Schema))
{
schemaname = string.Empty;
}
else
{
schemaname = item.Schema;
}
if (byschema.TryGetValue(schemaname, out schema) == false)
{
schema = new Dictionary <DBSchemaTypes, List <DBSchemaItemRef> >();
byschema.Add(schemaname, schema);
}
DBSchemaTypes type = item.Type;
List <DBSchemaItemRef> all;
if (!schema.TryGetValue(type, out all))
{
all = new List <DBSchemaItemRef>();
schema.Add(type, all);
}
all.Add(item);
}
foreach (Dictionary <DBSchemaTypes, List <DBSchemaItemRef> > package in byschema.Values)
{
foreach (List <DBSchemaItemRef> value in package.Values)
{
value.Sort(delegate(DBSchemaItemRef one, DBSchemaItemRef two) { return(one.Name.CompareTo(two.Name)); });
}
}
}
protected virtual void FillNotSupported(TypedOperationCollection all)
{
Array values = Enum.GetValues(typeof(DBSchemaOperation));
//We don't support databases
DBSchemaTypes type = DBSchemaTypes.Database;
foreach (DBSchemaOperation op in values)
{
all.Add(type, op);
}
//We don't support users
type = DBSchemaTypes.User;
foreach (DBSchemaOperation op in values)
{
all.Add(type, op);
}
//we don't support groups or roles
type = DBSchemaTypes.Group;
foreach (DBSchemaOperation op in values)
{
all.Add(type, op);
}
//can't create functions
type = DBSchemaTypes.Function;
foreach (DBSchemaOperation op in values)
{
if (op != DBSchemaOperation.Exec)
{
all.Add(type, op);
}
}
//can't create sprocs
type = DBSchemaTypes.StoredProcedure;
foreach (DBSchemaOperation op in values)
{
if (op != DBSchemaOperation.Exec)
{
all.Add(type, op);
}
}
}
public override void EndCreate(DBSchemaTypes type, bool checknotexists)
{
if (type == DBSchemaTypes.StoredProcedure)
{
throw new NotSupportedException(string.Format(Errors.DatabaseEngineDoesntSupportType, type));
}
if (type != DBSchemaTypes.ForeignKey)
{
//Special case where the CREATE VIEW .. AS cannot have parenthese after - causes exception
if (type == DBSchemaTypes.View)
{
this.IncrementStatementDepth();
}
}
base.EndCreate(type, checknotexists);
}
//Drop overrides for the supported syntax - DROP .... IF EXISTS
//Rather than the default IF EXISTS (SELECT FROM INFO SCHEMA)
public override void BeginDropStatement(DBSchemaTypes type, string owner, string name, bool checkExists)
{
if (checkExists)
{
if (type == DBSchemaTypes.Index)
{
throw new ArgumentOutOfRangeException("checkExists", string.Format(Errors.DBDoesntSupportIfExistsForThisType, "MySQL", type));
}
}
this.BeginDropStatement(type);
if (checkExists)
{
this.WriteCheckExists(type, owner, name);
}
this.WriteSourceTable(owner, name, string.Empty);
}
public override void BeginDropStatement(DBSchemaTypes type, string owner, string name, bool checkExists)
{
if (type == DBSchemaTypes.StoredProcedure)
{
throw new NotSupportedException(string.Format(Errors.DatabaseEngineDoesntSupportType, type));
}
this.BeginDropStatement(type);
if (checkExists)
{
this.WriteCheckExists(type, owner, name);
}
this.WriteSourceTable(owner, name, string.Empty);
if (type == DBSchemaTypes.Index)
{
_droppingIndex = true;
}
}
/// <summary>
/// returns the index of the image in the ImageList based upon the schema type
/// </summary>
/// <param name="dBSchemaTypes"></param>
/// <returns></returns>
private int GetIconForType(DBSchemaTypes dBSchemaTypes)
{
int imgIndex;
switch (dBSchemaTypes)
{
case DBSchemaTypes.Table:
imgIndex = 0;
break;
case DBSchemaTypes.View:
imgIndex = 3;
break;
case DBSchemaTypes.StoredProcedure:
imgIndex = 5;
break;
case DBSchemaTypes.Function:
imgIndex = 4;
break;
case DBSchemaTypes.Index:
imgIndex = 1;
break;
case DBSchemaTypes.CommandScripts:
imgIndex = 6;
break;
case DBSchemaTypes.ForeignKey:
imgIndex = 2;
break;
default:
imgIndex = -1;
break;
}
return(imgIndex);
}
public override void BeginCreate(DBSchemaTypes type, string owner, string name, string options, bool checknotexists)
{
if (checknotexists)
{
if (type == DBSchemaTypes.Index || type == DBSchemaTypes.View)
{
throw new ArgumentOutOfRangeException("checknotexisits", string.Format(Errors.DBDoesntSupportIfExistsForThisType, "MySQL", type));
}
}
bool isconstraint = IsConstraintType(type);
if (isconstraint)
{
if (!string.IsNullOrEmpty(name))
{
this.WriteRawSQLString("CONSTRAINT ");
this.BeginIdentifier();
this.WriteObjectName(name);
this.EndIdentifier();
this.WriteSpace();
}
}
this.BeginCreate(type, options);
if (checknotexists)
{
this.WriteCheckNotExists(type, owner, name);
}
if (!this.IsConstraintType(type))
{
this.WriteSourceTable(owner, name, string.Empty);
}
}
//
// public methods
//
#region public bool CheckSupports(DBSchemaTypes schema)
/// <summary>
/// Returns true if the Database supports the required schema type
/// </summary>
/// <param name="schema">The schema type to check (can be multiple)</param>
/// <returns>True if the schema type is supported</returns>
public bool CheckSupports(DBSchemaTypes schema)
{
return((this.SupportedSchemas & schema) > 0);
}
public override void EndCheckNotExists(DBSchemaTypes type, string owner, string name)
{
}
private void WriteCheckNotExists(DBSchemaTypes type, string owner, string name)
{
this.WriteRawSQLString(" IF NOT EXISTS ");
}