Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / Data / System / Data / Common / BooleanStorage.cs / 1 / BooleanStorage.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data.Common { using System; using System.Xml; using System.Data.SqlTypes; using System.Collections; internal sealed class BooleanStorage : DataStorage { private const Boolean defaultValue = false; private Boolean[] values; internal BooleanStorage(DataColumn column) : base(column, typeof(Boolean), defaultValue) { } override public Object Aggregate(int[] records, AggregateType kind) { bool hasData = false; try { switch (kind) { case AggregateType.Min: Boolean min = true; for (int i = 0; i < records.Length; i++) { int record = records[i]; if (IsNull(record)) continue; min=values[record] && min; hasData = true; } if (hasData) { return min; } return NullValue; case AggregateType.Max: Boolean max = false; for (int i = 0; i < records.Length; i++) { int record = records[i]; if (IsNull(record)) continue; max=values[record] || max; hasData = true; } if (hasData) { return max; } return NullValue; case AggregateType.First: if (records.Length > 0) { return values[records[0]]; } return null; case AggregateType.Count: return base.Aggregate(records, kind); } } catch (OverflowException) { throw ExprException.Overflow(typeof(Boolean)); } throw ExceptionBuilder.AggregateException(kind, DataType); } override public int Compare(int recordNo1, int recordNo2) { Boolean valueNo1 = values[recordNo1]; Boolean valueNo2 = values[recordNo2]; if (valueNo1 == defaultValue || valueNo2 == defaultValue) { int bitCheck = CompareBits(recordNo1, recordNo2); if (0 != bitCheck) return bitCheck; } return valueNo1.CompareTo(valueNo2); //return ((valueNo1 == valueNo2) ? 0 : ((false == valueNo1) ? -1 : 1)); // similar to Boolean.CompareTo(Boolean) } public override int CompareValueTo(int recordNo, object value) { System.Diagnostics.Debug.Assert(0 <= recordNo, "Invalid record"); System.Diagnostics.Debug.Assert(null != value, "null value"); if (NullValue == value) { if (IsNull(recordNo)) { return 0; } return 1; } Boolean valueNo1 = values[recordNo]; if ((defaultValue == valueNo1) && IsNull(recordNo)) { return -1; } return valueNo1.CompareTo((Boolean)value); //return ((valueNo1 == valueNo2) ? 0 : ((false == valueNo1) ? -1 : 1)); // similar to Boolean.CompareTo(Boolean) } public override object ConvertValue(object value) { if (NullValue != value) { if (null != value) { value = ((IConvertible)value).ToBoolean(FormatProvider); } else { value = NullValue; } } return value; } override public void Copy(int recordNo1, int recordNo2) { CopyBits(recordNo1, recordNo2); values[recordNo2] = values[recordNo1]; } override public Object Get(int record) { Boolean value = values[record]; if (value != defaultValue) { return value; } return GetBits(record); } override public void Set(int record, Object value) { System.Diagnostics.Debug.Assert(null != value, "null value"); if (NullValue == value) { values[record] = defaultValue; SetNullBit(record, true); } else { values[record] = ((IConvertible)value).ToBoolean(FormatProvider); SetNullBit(record, false); } } override public void SetCapacity(int capacity) { Boolean[] newValues = new Boolean[capacity]; if (null != values) { Array.Copy(values, 0, newValues, 0, Math.Min(capacity, values.Length)); } values = newValues; base.SetCapacity(capacity); } override public object ConvertXmlToObject(string s) { return XmlConvert.ToBoolean(s); } override public string ConvertObjectToXml(object value) { return XmlConvert.ToString((Boolean) value); } override protected object GetEmptyStorage(int recordCount) { return new Boolean[recordCount]; } override protected void CopyValue(int record, object store, BitArray nullbits, int storeIndex) { Boolean[] typedStore = (Boolean[]) store; typedStore[storeIndex] = values[record]; nullbits.Set(storeIndex, IsNull(record)); } override protected void SetStorage(object store, BitArray nullbits) { values = (Boolean[]) store; SetNullStorage(nullbits); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data.Common { using System; using System.Xml; using System.Data.SqlTypes; using System.Collections; internal sealed class BooleanStorage : DataStorage { private const Boolean defaultValue = false; private Boolean[] values; internal BooleanStorage(DataColumn column) : base(column, typeof(Boolean), defaultValue) { } override public Object Aggregate(int[] records, AggregateType kind) { bool hasData = false; try { switch (kind) { case AggregateType.Min: Boolean min = true; for (int i = 0; i < records.Length; i++) { int record = records[i]; if (IsNull(record)) continue; min=values[record] && min; hasData = true; } if (hasData) { return min; } return NullValue; case AggregateType.Max: Boolean max = false; for (int i = 0; i < records.Length; i++) { int record = records[i]; if (IsNull(record)) continue; max=values[record] || max; hasData = true; } if (hasData) { return max; } return NullValue; case AggregateType.First: if (records.Length > 0) { return values[records[0]]; } return null; case AggregateType.Count: return base.Aggregate(records, kind); } } catch (OverflowException) { throw ExprException.Overflow(typeof(Boolean)); } throw ExceptionBuilder.AggregateException(kind, DataType); } override public int Compare(int recordNo1, int recordNo2) { Boolean valueNo1 = values[recordNo1]; Boolean valueNo2 = values[recordNo2]; if (valueNo1 == defaultValue || valueNo2 == defaultValue) { int bitCheck = CompareBits(recordNo1, recordNo2); if (0 != bitCheck) return bitCheck; } return valueNo1.CompareTo(valueNo2); //return ((valueNo1 == valueNo2) ? 0 : ((false == valueNo1) ? -1 : 1)); // similar to Boolean.CompareTo(Boolean) } public override int CompareValueTo(int recordNo, object value) { System.Diagnostics.Debug.Assert(0 <= recordNo, "Invalid record"); System.Diagnostics.Debug.Assert(null != value, "null value"); if (NullValue == value) { if (IsNull(recordNo)) { return 0; } return 1; } Boolean valueNo1 = values[recordNo]; if ((defaultValue == valueNo1) && IsNull(recordNo)) { return -1; } return valueNo1.CompareTo((Boolean)value); //return ((valueNo1 == valueNo2) ? 0 : ((false == valueNo1) ? -1 : 1)); // similar to Boolean.CompareTo(Boolean) } public override object ConvertValue(object value) { if (NullValue != value) { if (null != value) { value = ((IConvertible)value).ToBoolean(FormatProvider); } else { value = NullValue; } } return value; } override public void Copy(int recordNo1, int recordNo2) { CopyBits(recordNo1, recordNo2); values[recordNo2] = values[recordNo1]; } override public Object Get(int record) { Boolean value = values[record]; if (value != defaultValue) { return value; } return GetBits(record); } override public void Set(int record, Object value) { System.Diagnostics.Debug.Assert(null != value, "null value"); if (NullValue == value) { values[record] = defaultValue; SetNullBit(record, true); } else { values[record] = ((IConvertible)value).ToBoolean(FormatProvider); SetNullBit(record, false); } } override public void SetCapacity(int capacity) { Boolean[] newValues = new Boolean[capacity]; if (null != values) { Array.Copy(values, 0, newValues, 0, Math.Min(capacity, values.Length)); } values = newValues; base.SetCapacity(capacity); } override public object ConvertXmlToObject(string s) { return XmlConvert.ToBoolean(s); } override public string ConvertObjectToXml(object value) { return XmlConvert.ToString((Boolean) value); } override protected object GetEmptyStorage(int recordCount) { return new Boolean[recordCount]; } override protected void CopyValue(int record, object store, BitArray nullbits, int storeIndex) { Boolean[] typedStore = (Boolean[]) store; typedStore[storeIndex] = values[record]; nullbits.Set(storeIndex, IsNull(record)); } override protected void SetStorage(object store, BitArray nullbits) { values = (Boolean[]) store; SetNullStorage(nullbits); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- HMACSHA256.cs
- MeshGeometry3D.cs
- ExpressionNormalizer.cs
- ScriptRef.cs
- HandlerBase.cs
- ConnectionOrientedTransportBindingElement.cs
- HttpAsyncResult.cs
- LoginView.cs
- Image.cs
- CompilerError.cs
- DbConnectionPoolGroup.cs
- Border.cs
- FontCacheLogic.cs
- Baml6ConstructorInfo.cs
- WebServiceEnumData.cs
- CodeSnippetCompileUnit.cs
- SwitchElementsCollection.cs
- ScrollPatternIdentifiers.cs
- ExpressionBuilderCollection.cs
- AsyncOperation.cs
- ScriptReference.cs
- EdmSchemaAttribute.cs
- FilteredSchemaElementLookUpTable.cs
- JavaScriptString.cs
- CultureInfoConverter.cs
- StickyNoteContentControl.cs
- HtmlAnchor.cs
- EntityUtil.cs
- NetworkInterface.cs
- SimpleTypeResolver.cs
- BindingCollectionElement.cs
- MenuAdapter.cs
- HttpCapabilitiesSectionHandler.cs
- Events.cs
- PropertyValueChangedEvent.cs
- ELinqQueryState.cs
- ModulesEntry.cs
- ResXResourceSet.cs
- DynamicUpdateCommand.cs
- BinaryObjectReader.cs
- MapPathBasedVirtualPathProvider.cs
- JavaScriptString.cs
- PolicyStatement.cs
- SmtpNegotiateAuthenticationModule.cs
- ScaleTransform3D.cs
- BitmapEffectState.cs
- DataGridViewImageCell.cs
- WaitHandleCannotBeOpenedException.cs
- SmtpLoginAuthenticationModule.cs
- StrongNameUtility.cs
- DataGridViewCellMouseEventArgs.cs
- IPHostEntry.cs
- BooleanSwitch.cs
- Label.cs
- DoubleConverter.cs
- StylusEditingBehavior.cs
- Pen.cs
- ScrollContentPresenter.cs
- SetterBaseCollection.cs
- TrackPoint.cs
- XamlTypeMapper.cs
- FloaterParagraph.cs
- GetMemberBinder.cs
- MetadataCache.cs
- UiaCoreProviderApi.cs
- UnsafeNativeMethods.cs
- ValidationHelpers.cs
- HttpChannelBindingToken.cs
- CodeCompileUnit.cs
- TabPanel.cs
- PrincipalPermission.cs
- BufferBuilder.cs
- ExpressionBuilder.cs
- LineServicesRun.cs
- TypedDatasetGenerator.cs
- XamlTypeMapperSchemaContext.cs
- RSACryptoServiceProvider.cs
- DocumentsTrace.cs
- CustomExpression.cs
- ListViewItemMouseHoverEvent.cs
- LayoutDump.cs
- BridgeDataReader.cs
- NameSpaceExtractor.cs
- VisualStyleTypesAndProperties.cs
- SqlError.cs
- FormattedText.cs
- JavascriptCallbackResponseProperty.cs
- KeyMatchBuilder.cs
- AsnEncodedData.cs
- TemplateParser.cs
- Size.cs
- ScriptingSectionGroup.cs
- versioninfo.cs
- ResourcePermissionBaseEntry.cs
- RequestCache.cs
- ProfileSettings.cs
- StrongNameMembershipCondition.cs
- PropertyNames.cs
- HtmlTableCell.cs
- TemplateField.cs