Class AstRowSamplingNode
The Row Sampling transformation generates a sample data set by randomly selecting a specified number of data flow rows from the input.
public class AstRowSamplingNode : AstSingleInTransformationNode, IBindableItem, IVulcanCollectionParent, IVulcanNotifyPropertyChanged, IPropertyChangeNotificationTarget, IGetJsonProvider, INamedNode, IScopeBoundary, IReferenceableItem, IFrameworkItem, INotifyPropertyChanged, IXObjectMappingProvider, IValidationInfo, IDataErrorInfo, INamedItem, IScopedNameIndexable, IDataflowItem
- Inheritance
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System.ObjectAstRowSamplingNode
- Derived
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AstRowSamplingNode
IBindableItem, Varigence.Utility.Collections.IVulcanCollectionParent, Varigence.Utility.ComponentModel.IVulcanNotifyPropertyChanged, Varigence.Utility.ComponentModel.IPropertyChangeNotificationTarget, IGetJsonProvider, INamedNode, IScopeBoundary, IReferenceableItem, IFrameworkItem, System.ComponentModel.INotifyPropertyChanged, Varigence.Utility.Xml.IXObjectMappingProvider, IValidationInfo, System.ComponentModel.IDataErrorInfo, INamedItem, Varigence.Utility.Collections.IScopedNameIndexable, IDataflowItem,
Constructors
| AstRowSamplingNode(IFrameworkItem) | Initializes a new instance of the AstRowSamplingNode class with the specified parent node. |
Properties
| Columns | This is a collection of column mapping defintions for the row sampling node. |
| FriendlyTypeName | Gets the friendly name of the type of this node |
| FriendlyTypeNameStatic | Gets the friendly name of the type of this node |
| NumberOfRows | This value specifies the number of rows to be included in the sample data set. |
| NumberOfRowsDefaultValue | Gets the default value for the NumberOfRows property |
| SamplingSeed | This value specifies a seed for the random number generator. The default value is 0, which means that the transformation uses a tick count. |
| SamplingSeedDefaultValue | Gets the default value for the SamplingSeed property |
| SelectedPath | Gets the selected output path for this transformation. This is the preferred output path and will automatically connect to any single-input transformation nodes that directly follow it in the Biml file. |
| UnselectedPath | Gets the unselected output path for this transformation |
Methods
| BindingScopeBoundaries() | Retrieves the permitted scope boundaries to bind references from this node. |
| CopyFrom(IFrameworkItem, UnboundReferences) | Instructs the node to copy property values from the supplied node into itself. This method should only be used by the internal Biml framework. |
| DefinedAstNodes() | Retrieves a collection of nodes that have been defined as direct children of the current node. |
| Duplicate() | Creates a duplicate of the current node |
| Duplicate(Dictionary<IFrameworkItem, IFrameworkItem>) | Creates a duplicate of the current node with the scoped node mapping |
| Duplicate(IFrameworkItem) | Creates a duplicate of the current node with the specified parent item |
| Duplicate(IFrameworkItem, Dictionary<IFrameworkItem, IFrameworkItem>) | Creates a duplicate of the current node with the specified parent item and scoped node mapping |
| DuplicateHusk(IFrameworkItem) | Creates an empty object into which the values from the current node will be duplicated. This method should only be used by the internal Biml framework |
| DuplicateInto(IFrameworkItem, Dictionary<IFrameworkItem, IFrameworkItem>) | Copies the values from the current node into a husk object with the specified scoped node mapping. This method should only be used by the internal Biml framework |
| EmitXmlForAction(AstEnginePropertyAction) | Instructs the node to make changes to its underlying Biml code that correspond to the provided action. This method should only be used by the internal Biml framework. |
| EmitXmlForProperty(String, Int32) | Instructs the node to make changes to its underlying Biml code that correspond to the provided property and index. This method should only be used by the internal Biml framework. |
| GetAllItemsReferencedByDefinedSuccessors() | Builds a list of all items referenced by this node and its successors. Each tuple in the returned list represents a FrameworkItemReference. The first item is the ReferencingItem, the second item is the property name, and the third item is the ReferencedItem. |
| GetBimlAttributeFragment(CulturedStringBuilder) | |
| GetBimlChildFragment(CulturedStringBuilder, Int32) | |
| GetBimlFragment(CulturedStringBuilder, Int32, Boolean) | Internal method used by the Biml engine to produce the XML code for the current object. |
| GetDefaultValue(String) | Retrieves the default value for the property with the name propertyName |
| GetDefaultValue<T>(String) | Retrieves the default value for the property with the name propertyName |
| GetJson(StringBuilder, ref Boolean, Boolean, Boolean, Boolean, Boolean, Boolean, Boolean, Boolean) | Generates a JavaScript Object Notation (JSON) representation of the current node |
| GetPotentialParentProperties() | Retrieves the reflection information for related properties of this node type. |
| GetPropertyValue(String) | Retrieves the current value for the property with the name propertyName |
| GetReflectionInfoFromXmlParsePath(String) | Retrieves the reflection information corresponding to the Xml parse path beginning at this node. |
| HasAnyBimlChildNodes() | |
| MergeFrom(IFrameworkItem, UnboundReferences, Boolean) | Instructs the node to merge property values from the supplied node into itself. This method should only be used by the internal Biml framework. |
| NotifyCollectionPropertyChanged(Object, String, NotifyCollectionChangedEventArgs) | Internal Biml framework method used to notify this node that the specified collection property value has changed. |
| ParseAttribute(XAttribute, ParserContext) | |
| ParseChild(XElement, ParserContext) | |
| StructureEquals(Object) | Compares this node to the provided object to determine if all defined children and references are equal. |