Class ExpressionHelper

Namespace

Dynamicweb.Indexing.Querying.Expressions

Assembly

Dynamicweb.Indexing.dll

The Class ExpressionHelper helps to work with expressions

public sealed class ExpressionHelper

Inheritance

object

ExpressionHelper

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Methods

CreateFieldExpression(string, string, object, OperatorType)

Creates expression based on field source with given value and operator

public static Expression CreateFieldExpression(string fieldName, string fieldSystemName, object fieldValue, OperatorType operatorType)

Parameters

fieldName string

The name of field in the index.

fieldSystemName string

The system name of field in the index.

fieldValue object

The value for expression.

operatorType OperatorType

the operator.

Returns

Expression

DeserializeFromJson(JObject)

Deserialize json object into expression

public static Expression DeserializeFromJson(JObject element)

Parameters

element JObject

Json element

Returns

Expression

Expression instance

DeserializeFromXml(XElement)

Deserialize xml element into expression

public static Expression DeserializeFromXml(XElement element)

Parameters

element XElement

Xml element

Returns

Expression

Expression instance

GetOperatorTypeSymbol(OperatorType)

Gets operator symbol

public static string GetOperatorTypeSymbol(OperatorType operatorType)

Parameters

operatorType OperatorType

The operator

Returns

string

String representation of the operator

SerializeToXml(XElement, Expression)

Serializes an expression into xml element

public static void SerializeToXml(XElement element, Expression expression)

Parameters

element XElement

Xml element to be serialized into

expression Expression

The expression to be serialized