queryexpr-class
Represents a sub-query expression
public class Korzh.EasyQuery.QueryExpr
: EqExpression
Assembly: Korzh.EasyQuery.dll
Constructors
Name | Type | Description |
---|---|---|
QueryExpr(DataModel model) | void | Initializes a new instance of the Korzh.EasyQuery.QueryExpr class. |
Properties
Name | Type | Description |
---|---|---|
DataType | DataType | Gets or sets the data type. |
IsPlainSql | bool | Gets a value indicating whether this instance contains a plain SQL statement. |
Kind | DataKind | Gets the expression kind. |
Query | Query | Gets or sets the query. |
Tag | int | Get the expression's tag - a special identifier that is used to distinguish the type of the expression . |
Methods
Name | Type | Description |
---|---|---|
LoadFromXmlReader(XmlReader reader) | void | Loads expression from System.Xml.XmlReader object. |
ReadOnePropFromJsonAsync(JsonReader reader, string propName, CancellationToken ct) | Task | Reads the expression properties from JSON (asynchronous way). |
SaveToXmlWriter(XmlWriter writer, string tagName) | void | Saves expression to System.Xml.XmlWriter object. |
TagToOldClassName(int tag) | string | Converts the expression's tag value to the name of old expression class (like "CONST" or "ENTATTR"). |
WritePropertiesToJsonAsync(JsonWriter writer, CancellationToken ct) | Task | Writes expression properties to JSON (asynchronous way). |