Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / 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
- AsyncOperationManager.cs
- XmlReturnReader.cs
- DictionaryContent.cs
- PermissionSet.cs
- EnumerableRowCollectionExtensions.cs
- CompleteWizardStep.cs
- BulletedList.cs
- Update.cs
- Semaphore.cs
- ConstraintStruct.cs
- XmlnsCache.cs
- IssuedTokenClientElement.cs
- BindableTemplateBuilder.cs
- PopupEventArgs.cs
- TrackBarRenderer.cs
- Tag.cs
- FigureParaClient.cs
- DocComment.cs
- CreateUserWizard.cs
- AutoGeneratedFieldProperties.cs
- DeleteBookmarkScope.cs
- ChannelFactory.cs
- ConfigurationStrings.cs
- OpenFileDialog.cs
- TreeViewAutomationPeer.cs
- XmlILIndex.cs
- SelectedGridItemChangedEvent.cs
- ExtendedPropertyCollection.cs
- GridErrorDlg.cs
- IteratorFilter.cs
- CompModSwitches.cs
- CapabilitiesUse.cs
- DataGridViewCellFormattingEventArgs.cs
- ContourSegment.cs
- Invariant.cs
- FormsIdentity.cs
- Int32Rect.cs
- ComponentRenameEvent.cs
- DiscoveryClientDuplexChannel.cs
- ElementInit.cs
- Focus.cs
- GPRECTF.cs
- FrameworkReadOnlyPropertyMetadata.cs
- XmlSchemaComplexType.cs
- ActivitySurrogate.cs
- EditingMode.cs
- CompilerHelpers.cs
- ValueUnavailableException.cs
- DoubleAnimationBase.cs
- DataFieldConverter.cs
- DataListCommandEventArgs.cs
- SmtpLoginAuthenticationModule.cs
- SafeRightsManagementQueryHandle.cs
- InternalRelationshipCollection.cs
- MdiWindowListStrip.cs
- TypeDelegator.cs
- COSERVERINFO.cs
- FreezableDefaultValueFactory.cs
- FaultContext.cs
- BooleanKeyFrameCollection.cs
- ValidationError.cs
- _ConnectOverlappedAsyncResult.cs
- Pair.cs
- NavigatorInput.cs
- XmlLanguageConverter.cs
- VerificationException.cs
- HttpRequestCacheValidator.cs
- DataServiceHostFactory.cs
- SynthesizerStateChangedEventArgs.cs
- RSAPKCS1KeyExchangeFormatter.cs
- DtdParser.cs
- ProbeDuplex11AsyncResult.cs
- DataServiceRequest.cs
- FixedTextBuilder.cs
- LocatorBase.cs
- PropertyPushdownHelper.cs
- OrderedDictionaryStateHelper.cs
- FieldInfo.cs
- PropertyGroupDescription.cs
- StructuralObject.cs
- HostedController.cs
- MethodCallTranslator.cs
- Repeater.cs
- ServiceMetadataPublishingElement.cs
- MailBnfHelper.cs
- DiscoveryDocument.cs
- PresentationSource.cs
- SqlParameter.cs
- DES.cs
- XmlCodeExporter.cs
- MimeFormReflector.cs
- BaseUriHelper.cs
- XamlFigureLengthSerializer.cs
- ToolStripSeparator.cs
- DataShape.cs
- CodeIdentifiers.cs
- TimerEventSubscriptionCollection.cs
- PermissionRequestEvidence.cs
- BezierSegment.cs
- Registry.cs