Deveel.Data.SystemTableContainer Class Reference

Inheritance diagram for Deveel.Data.SystemTableContainer:

Public Member Functions
int	FindByName (ObjectName name)
	Finds the index in this container of the given table by its name. More...
ObjectName	GetTableName (int offset)
	Gets the name of the table at the given index in this container. More...
abstract TableInfo	GetTableInfo (int offset)
	Gets the information of the table at the given offset in this container. More...
abstract string	GetTableType (int offset)
	Gets the type of the table at the given offset. More...
bool	ContainsTable (ObjectName name)
	Checks if a table with the given name is contained in the current context. More...
abstract ITable	GetTable (int offset)
	Gets the table contained at the given offset within the context. More...

Protected Member Functions
	SystemTableContainer (ITransaction transaction, ObjectName tableName)

Properties
ITransaction	Transaction [get, private set]
ObjectName	TableName [get, private set]
int	TableCount [get]
Properties inherited from Deveel.Data.Sql.Tables.ITableContainer
int	TableCount [get]
	Returns the total count of tables that this object is maintaining. More...

Detailed Description

Definition at line 24 of file SystemTableContainer.cs.

Constructor & Destructor Documentation

Deveel.Data.SystemTableContainer.SystemTableContainer ( ITransaction  transaction, ObjectName  tableName  )

inlineprotected

Definition at line 25 of file SystemTableContainer.cs.

                                                                                       {
            Transaction = transaction;
            TableName = tableName;
        }

Member Function Documentation

bool Deveel.Data.SystemTableContainer.ContainsTable ( ObjectName  name )

inline

Checks if a table with the given name is contained in the current context.

Parameters

name	The name of the table to search.

Returns

Returns true if any table with the given name was found in the container, false otherwise.

Implements Deveel.Data.Sql.Tables.ITableContainer.

Definition at line 87 of file SystemTableContainer.cs.

                                                   {
            // This set can not contain the table that is backing it, so we always
            // return false for that.  This check stops an annoying recursive
            // situation for table name resolution.
            if (name.Equals(TableName))
                return false;

            return FindByName(name) != -1;
        }

int Deveel.Data.SystemTableContainer.FindByName ( ObjectName  name )

inline

Finds the index in this container of the given table by its name.

Parameters

name	The name of the table to find.

Returns

Returns a zero-based index that represents the offset of the table identified by the given name within the context, ot -1 of not found.

Implements Deveel.Data.Sql.Tables.ITableContainer.

Definition at line 38 of file SystemTableContainer.cs.

                                               {
            if (Transaction.RealTableExists(TableName)) {
                // Search the table.  We assume that the schema and name of the object
                // are in columns 0 and 1 respectively.
                var table = Transaction.GetTable(TableName);
                var rowE = table.GetEnumerator();
                int p = 0;
                while (rowE.MoveNext()) {
                    int rowIndex = rowE.Current.RowId.RowNumber;
                    var obName = table.GetValue(rowIndex, 1);
                    if (obName.Value.ToString().Equals(name.Name)) {
                        var obSchema = table.GetValue(rowIndex, 0);
                        if (obSchema.Value.ToString().Equals(name.ParentName)) {
                            // Match so return this
                            return p;
                        }
                    }
                    ++p;
                }
            }

            return -1;
        }

abstract ITable Deveel.Data.SystemTableContainer.GetTable ( int  offset )

pure virtual

Gets the table contained at the given offset within the context.

Parameters

offset

The zero-based offset of the table to return.

Returns

Returns an instance of ITable that provides access to the backed informaion for an object provided by the context.

Exceptions

ArgumentOutOfRangeException

If the given offset is smaller than 0 or greater or equal than TableCount.

Implements Deveel.Data.Sql.Tables.ITableContainer.

Implemented in Deveel.Data.Sql.Triggers.TriggerManager.TriggersTableContainer, Deveel.Data.Sql.Views.ViewManager.ViewTableContainer, and Deveel.Data.Routines.RoutineManager.RoutinesTableContainer.

abstract TableInfo Deveel.Data.SystemTableContainer.GetTableInfo ( int  offset )

pure virtual

Gets the information of the table at the given offset in this container.

Parameters

offset

The zero-based offset of the table whose information to return.

Returns

Returns an instance of

See also

TableInfo

that describes the metadata of a table at the given offset within the context.

Exceptions

ArgumentOutOfRangeException

If the given offset is smaller than 0 or greater or equal than TableCount.

Implements Deveel.Data.Sql.Tables.ITableContainer.

Implemented in Deveel.Data.Sql.Triggers.TriggerManager.TriggersTableContainer, Deveel.Data.Sql.Views.ViewManager.ViewTableContainer, and Deveel.Data.Routines.RoutineManager.RoutinesTableContainer.

ObjectName Deveel.Data.SystemTableContainer.GetTableName ( int  offset )

inline

Gets the name of the table at the given index in this container.

Parameters

offset

The zero-based offset of the table whose name to return.

Returns

Returns a

See also

ObjectName

that identifies the table.

Exceptions

ArgumentOutOfRangeException

If the given offset is smaller than 0 or greater or equal than TableCount.

Implements Deveel.Data.Sql.Tables.ITableContainer.

Definition at line 62 of file SystemTableContainer.cs.

                                                   {
            if (Transaction.RealTableExists(TableName)) {
                // Search the table.  We assume that the schema and name of the object
                // are in columns 0 and 1 respectively.
                var table = Transaction.GetTable(TableName);
                var rowE = table.GetEnumerator();
                int p = 0;
                while (rowE.MoveNext()) {
                    int rowIndex = rowE.Current.RowId.RowNumber;
                    if (offset == p) {
                        var obSchema = table.GetValue(rowIndex, 0);
                        var obName = table.GetValue(rowIndex, 1);
                        return new ObjectName(new ObjectName(obSchema.Value.ToString()), obName.Value.ToString());
                    }
                    ++p;
                }
            }

            throw new Exception("Out of bounds.");
        }

abstract string Deveel.Data.SystemTableContainer.GetTableType ( int  offset )

pure virtual

Gets the type of the table at the given offset.

Parameters

offset

The zero-based offset of the table whose type to return.

Returns

Returns a String that describes the type of table at the given offset.

Exceptions

ArgumentOutOfRangeException

If the given offset is smaller than 0 or greater or equal than TableCount.

Implements Deveel.Data.Sql.Tables.ITableContainer.

Implemented in Deveel.Data.Sql.Triggers.TriggerManager.TriggersTableContainer, Deveel.Data.Sql.Views.ViewManager.ViewTableContainer, and Deveel.Data.Routines.RoutineManager.RoutinesTableContainer.

Property Documentation

int Deveel.Data.SystemTableContainer.TableCount

get

Definition at line 34 of file SystemTableContainer.cs.

ObjectName Deveel.Data.SystemTableContainer.TableName

getprivate set

Definition at line 32 of file SystemTableContainer.cs.

ITransaction Deveel.Data.SystemTableContainer.Transaction

getprivate set

Definition at line 30 of file SystemTableContainer.cs.

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The documentation for this class was generated from the following file:

• /var/calculate/remote/distfiles/egit-src/deveeldb.git/src/deveeldb/Deveel.Data/SystemTableContainer.cs