339 lines
9.3 KiB
C#
339 lines
9.3 KiB
C#
//
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// System.Data.Common.DataColumnMappingCollection
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//
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// Authors:
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// Rodrigo Moya (rodrigo@ximian.com)
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// Tim Coleman (tim@timcoleman.com)
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//
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// (C) Ximian, Inc
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// Copyright (C) Tim Coleman, 2002-2003
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//
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//
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// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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using System.ComponentModel;
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using System.Data;
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namespace System.Data.Common
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{
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public sealed class DataColumnMappingCollection : MarshalByRefObject, IColumnMappingCollection , IList, ICollection, IEnumerable
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{
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#region Fields
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readonly ArrayList list;
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readonly Hashtable sourceColumns;
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readonly Hashtable dataSetColumns;
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#endregion // Fields
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#region Constructors
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public DataColumnMappingCollection ()
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{
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list = new ArrayList ();
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sourceColumns = new Hashtable ();
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dataSetColumns = new Hashtable ();
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}
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#endregion // Constructors
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#region Properties
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[Browsable (false)]
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#if !NET_2_0
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[DataSysDescription ("The number of items in the collection")]
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#endif
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[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
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public int Count {
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get { return list.Count; }
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}
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[Browsable (false)]
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#if !NET_2_0
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[DataSysDescription ("The specified DataColumnMapping object.")]
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#endif
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[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
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public DataColumnMapping this [int index] {
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get { return (DataColumnMapping)(list[index]); }
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set {
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DataColumnMapping mapping = (DataColumnMapping)(list[index]);
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sourceColumns[mapping] = value;
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dataSetColumns[mapping] = value;
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list[index] = value;
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}
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}
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[Browsable (false)]
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#if !NET_2_0
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[DataSysDescription ("The specified DataColumnMapping object.")]
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#endif
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[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
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public DataColumnMapping this [string sourceColumn] {
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get {
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if (!Contains(sourceColumn))
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throw new IndexOutOfRangeException("DataColumnMappingCollection doesn't contain DataColumnMapping with SourceColumn '" + sourceColumn + "'.");
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return (DataColumnMapping) sourceColumns [sourceColumn];
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}
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set {
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this [list.IndexOf (sourceColumns [sourceColumn])] = value;
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}
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}
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object ICollection.SyncRoot {
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get { return list.SyncRoot; }
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}
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bool ICollection.IsSynchronized {
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get { return list.IsSynchronized; }
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}
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object IColumnMappingCollection.this [string index] {
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get { return this [index]; }
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set {
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if (!(value is DataColumnMapping))
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throw new ArgumentException ();
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this [index] = (DataColumnMapping) value;
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}
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}
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object IList.this [int index] {
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get { return this [index]; }
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set {
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if (!(value is DataColumnMapping))
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throw new ArgumentException ();
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this [index] = (DataColumnMapping) value;
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}
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}
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bool IList.IsReadOnly {
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get { return false; }
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}
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bool IList.IsFixedSize {
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get { return false; }
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}
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#endregion // Properties
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#region Methods
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public int Add (object value)
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{
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if (!(value is DataColumnMapping))
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throw new InvalidCastException ();
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list.Add (value);
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sourceColumns [((DataColumnMapping) value).SourceColumn] = value;
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dataSetColumns [((DataColumnMapping )value).DataSetColumn] = value;
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return list.IndexOf (value);
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}
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public DataColumnMapping Add (string sourceColumn, string dataSetColumn)
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{
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DataColumnMapping mapping = new DataColumnMapping (sourceColumn, dataSetColumn);
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Add (mapping);
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return mapping;
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}
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#if NET_2_0
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public void AddRange (Array values)
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{
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for (int i = 0; i < values.Length; ++i)
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Add (values.GetValue (i));
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}
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#endif
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public void AddRange (DataColumnMapping[] values)
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{
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foreach (DataColumnMapping mapping in values)
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Add (mapping);
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}
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public void Clear ()
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{
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list.Clear ();
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}
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public bool Contains (object value)
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{
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if (!(value is DataColumnMapping))
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throw new InvalidCastException("Object is not of type DataColumnMapping");
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return (list.Contains (value));
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}
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public bool Contains (string value)
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{
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return (sourceColumns.Contains (value));
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}
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public void CopyTo (Array array, int index)
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{
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list.CopyTo (array,index);
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}
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#if NET_2_0
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public void CopyTo (DataColumnMapping [] array, int index)
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{
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list.CopyTo (array, index);
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}
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#endif
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public DataColumnMapping GetByDataSetColumn (string value)
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{
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// this should work case-insenstive.
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if (!(dataSetColumns [value] == null))
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return (DataColumnMapping) (dataSetColumns [value]);
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else {
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string lowcasevalue = value.ToLower ();
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object [] keyarray = new object [dataSetColumns.Count];
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dataSetColumns.Keys.CopyTo (keyarray, 0);
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for (int i = 0; i < keyarray.Length; i++) {
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string temp = (string) keyarray [i];
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if (lowcasevalue.Equals (temp.ToLower ()))
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return (DataColumnMapping) (dataSetColumns [keyarray [i]]);
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}
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return null;
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}
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}
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[EditorBrowsable (EditorBrowsableState.Advanced)]
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public static DataColumnMapping GetColumnMappingBySchemaAction (DataColumnMappingCollection columnMappings, string sourceColumn, MissingMappingAction mappingAction)
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{
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if (columnMappings.Contains (sourceColumn))
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return columnMappings[sourceColumn];
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if (mappingAction == MissingMappingAction.Ignore)
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return null;
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if (mappingAction == MissingMappingAction.Error)
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throw new InvalidOperationException (String.Format ("Missing SourceColumn mapping for '{0}'", sourceColumn));
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return new DataColumnMapping (sourceColumn, sourceColumn);
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}
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#if NET_2_0
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[MonoTODO]
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[EditorBrowsable (EditorBrowsableState.Advanced)]
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public static DataColumn GetDataColumn (DataColumnMappingCollection columnMappings, string sourceColumn, Type dataType, DataTable dataTable, MissingMappingAction mappingAction, MissingSchemaAction schemaAction)
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{
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throw new NotImplementedException ();
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}
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#endif
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public IEnumerator GetEnumerator ()
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{
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return list.GetEnumerator ();
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}
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IColumnMapping IColumnMappingCollection.Add (string sourceColumnName, string dataSetColumnName)
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{
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return Add (sourceColumnName, dataSetColumnName);
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}
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IColumnMapping IColumnMappingCollection.GetByDataSetColumn (string dataSetColumnName)
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{
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return GetByDataSetColumn (dataSetColumnName);
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}
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public int IndexOf (object value)
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{
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return list.IndexOf (value);
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}
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public int IndexOf (string sourceColumn)
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{
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return list.IndexOf (sourceColumns [sourceColumn]);
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}
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public int IndexOfDataSetColumn (string dataSetColumn)
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{
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// this should work case-insensitive
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if (!(dataSetColumns [dataSetColumn] == null))
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return list.IndexOf (dataSetColumns [dataSetColumn]);
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else {
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string lowcasevalue = dataSetColumn.ToLower ();
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object [] keyarray = new object[dataSetColumns.Count];
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dataSetColumns.Keys.CopyTo (keyarray,0);
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for (int i = 0; i < keyarray.Length; i++) {
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string temp = (string) keyarray [i];
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if (lowcasevalue.Equals (temp.ToLower ()))
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return list.IndexOf (dataSetColumns [keyarray [i]]);
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}
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return -1;
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}
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}
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public void Insert (int index, object value)
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{
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list.Insert (index, value);
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sourceColumns [((DataColumnMapping) value).SourceColumn] = value;
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dataSetColumns [((DataColumnMapping) value).DataSetColumn] = value;
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}
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#if NET_2_0
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public void Insert (int index, DataColumnMapping value)
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{
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list.Insert (index, value);
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sourceColumns [value.SourceColumn] = value;
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dataSetColumns [value.DataSetColumn] = value;
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}
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#endif
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public void Remove (object value)
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{
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int index = list.IndexOf (value);
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sourceColumns.Remove (((DataColumnMapping) value).SourceColumn);
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dataSetColumns.Remove (((DataColumnMapping) value).DataSetColumn);
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if (index < 0 || index >=list.Count)
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throw new ArgumentException("There is no such element in collection.");
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list.Remove (value);
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}
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#if NET_2_0
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public void Remove (DataColumnMapping value)
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{
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int index = list.IndexOf (value);
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sourceColumns.Remove (value.SourceColumn);
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dataSetColumns.Remove (value.DataSetColumn);
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if ( index < 0 || index >=list.Count)
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throw new ArgumentException("There is no such element in collection.");
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list.Remove (value);
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}
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#endif
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public void RemoveAt (int index)
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{
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if (index < 0 || index >=list.Count)
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throw new IndexOutOfRangeException("There is no element in collection.");
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Remove (list [index]);
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}
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public void RemoveAt (string sourceColumn)
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{
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RemoveAt (list.IndexOf (sourceColumns [sourceColumn]));
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}
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#endregion // Methods
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}
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}
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