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
- SqlTriggerAttribute.cs
- ToolZone.cs
- TypedTableBase.cs
- cookiecollection.cs
- TemplateLookupAction.cs
- PropertyGridCommands.cs
- Win32Native.cs
- TraceInternal.cs
- PolyQuadraticBezierSegment.cs
- NamespaceInfo.cs
- HtmlLink.cs
- XPathBuilder.cs
- PolicyLevel.cs
- AppearanceEditorPart.cs
- XsdBuilder.cs
- ListItemConverter.cs
- Comparer.cs
- PresentationTraceSources.cs
- OutputCacheProfileCollection.cs
- ObjectMemberMapping.cs
- ProviderSettingsCollection.cs
- FastEncoder.cs
- DataGridViewButtonColumn.cs
- XmlDocument.cs
- DragDrop.cs
- BitmapImage.cs
- ConfigurationSectionGroup.cs
- ConditionalAttribute.cs
- SemaphoreFullException.cs
- GridViewSortEventArgs.cs
- EncryptedReference.cs
- ToolStripDropDownClosingEventArgs.cs
- SerializationInfoEnumerator.cs
- ColorDialog.cs
- ProviderMetadata.cs
- XamlSerializationHelper.cs
- SQLBinaryStorage.cs
- shaperfactoryquerycachekey.cs
- DataColumnChangeEvent.cs
- metadatamappinghashervisitor.hashsourcebuilder.cs
- ProfilePropertyMetadata.cs
- _TransmitFileOverlappedAsyncResult.cs
- PersistChildrenAttribute.cs
- PackageRelationshipCollection.cs
- EventBuilder.cs
- ResourceManagerWrapper.cs
- SettingsPropertyCollection.cs
- LambdaCompiler.Unary.cs
- CookieHandler.cs
- DbProviderServices.cs
- MultiAsyncResult.cs
- TypedDataSetSchemaImporterExtension.cs
- WebPartCollection.cs
- AppSettingsSection.cs
- XmlElementAttribute.cs
- SizeAnimation.cs
- FileDataSourceCache.cs
- X509Utils.cs
- SecurityRuntime.cs
- CodeExpressionCollection.cs
- SelectionItemProviderWrapper.cs
- DateTimeUtil.cs
- LexicalChunk.cs
- FormClosedEvent.cs
- XmlAttributeProperties.cs
- LingerOption.cs
- InvalidPropValue.cs
- Image.cs
- FloaterBaseParagraph.cs
- SignatureHelper.cs
- SettingsPropertyNotFoundException.cs
- AutomationProperty.cs
- SrgsElement.cs
- ControllableStoryboardAction.cs
- ListViewDeletedEventArgs.cs
- GridProviderWrapper.cs
- ValueChangedEventManager.cs
- OracleRowUpdatingEventArgs.cs
- MarkupExtensionReturnTypeAttribute.cs
- Point3DConverter.cs
- sitestring.cs
- TreeNode.cs
- WinInetCache.cs
- PrintDialog.cs
- StreamReader.cs
- DrawingAttributes.cs
- __Error.cs
- TrackBarRenderer.cs
- WebPartsPersonalization.cs
- SocketElement.cs
- SecurityChannelFactory.cs
- XmlRootAttribute.cs
- controlskin.cs
- WebPartEditorApplyVerb.cs
- UrlMappingsModule.cs
- SchemaContext.cs
- BinaryNode.cs
- ParameterReplacerVisitor.cs
- ProcessModule.cs
- ValidationRule.cs