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
- XComponentModel.cs
- securitycriticaldataformultiplegetandset.cs
- ProjectionPathSegment.cs
- GeneralTransform.cs
- ExpandCollapsePattern.cs
- Route.cs
- UsernameTokenFactoryCredential.cs
- MarkedHighlightComponent.cs
- NamedElement.cs
- RadioButtonBaseAdapter.cs
- RoleService.cs
- RepeaterItemEventArgs.cs
- Errors.cs
- _BasicClient.cs
- ImageBrush.cs
- ExitEventArgs.cs
- URLMembershipCondition.cs
- BitmapSource.cs
- DefinitionBase.cs
- ElementProxy.cs
- ReadOnlyDictionary.cs
- HasCopySemanticsAttribute.cs
- SemaphoreSlim.cs
- Aggregates.cs
- XamlWriterExtensions.cs
- Validator.cs
- WebControl.cs
- DataGridItemAutomationPeer.cs
- HtmlElementErrorEventArgs.cs
- AuthenticatedStream.cs
- RowUpdatingEventArgs.cs
- Enum.cs
- NotFiniteNumberException.cs
- StyleSelector.cs
- LightweightCodeGenerator.cs
- Guid.cs
- PocoPropertyAccessorStrategy.cs
- SourceFilter.cs
- ChangePassword.cs
- Stylus.cs
- StyleXamlParser.cs
- ComponentCommands.cs
- ListViewVirtualItemsSelectionRangeChangedEvent.cs
- TargetPerspective.cs
- SoapInteropTypes.cs
- DataGridViewCellToolTipTextNeededEventArgs.cs
- ShellProvider.cs
- Literal.cs
- DurationConverter.cs
- IisTraceListener.cs
- StorageComplexTypeMapping.cs
- StyleHelper.cs
- ColumnHeader.cs
- ItemPager.cs
- GeneralTransformGroup.cs
- RepeatButton.cs
- XmlSchemaExporter.cs
- HttpCookie.cs
- HandlerWithFactory.cs
- MailBnfHelper.cs
- SessionPageStatePersister.cs
- RTLAwareMessageBox.cs
- EndOfStreamException.cs
- PromptEventArgs.cs
- SoapAttributeAttribute.cs
- DataConnectionHelper.cs
- UTF8Encoding.cs
- CredentialCache.cs
- SqlPersonalizationProvider.cs
- GenerateScriptTypeAttribute.cs
- SizeConverter.cs
- ObjectListSelectEventArgs.cs
- ListMarkerLine.cs
- SchemaMapping.cs
- DrawTreeNodeEventArgs.cs
- HandlerWithFactory.cs
- DataGridViewColumnTypePicker.cs
- DockEditor.cs
- WorkflowApplicationAbortedException.cs
- CodeDomSerializerException.cs
- RenderDataDrawingContext.cs
- PropertyValueChangedEvent.cs
- MexBindingBindingCollectionElement.cs
- QilList.cs
- DataGridHeaderBorder.cs
- NameValueCollection.cs
- OverrideMode.cs
- DataObjectEventArgs.cs
- SafeRegistryHandle.cs
- FtpCachePolicyElement.cs
- ExtenderProvidedPropertyAttribute.cs
- ADMembershipUser.cs
- CFGGrammar.cs
- AssociationSet.cs
- WpfXamlMember.cs
- Attributes.cs
- NetworkInterface.cs
- SecureEnvironment.cs
- StatusCommandUI.cs
- XsdDuration.cs