Class Expression

A factory for unary IExpression operators

Inheritance

System.Object

Expression

Namespace: Couchbase.Lite.Query

Assembly: Couchbase.Lite.dll

Syntax

public static class Expression : object

Methods

All()

Returns an expression to represent '' in things like COUNT() and SELECT *

Declaration

public static IPropertyExpression All()

Returns

Type	Description
IPropertyExpression	The expression representing '*'

Array(IList)

Returns an expression to represent a fixed array value

Declaration

public static IExpression Array(IList value)

Parameters

Type	Name	Description
IList	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

Boolean(Boolean)

Returns an expression to represent a fixed value

Declaration

public static IExpression Boolean(bool value)

Parameters

Type	Name	Description
System.Boolean	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

Date(DateTimeOffset)

Returns an expression to represent a fixed value

Declaration

public static IExpression Date(DateTimeOffset value)

Parameters

Type	Name	Description
DateTimeOffset	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

Dictionary(IDictionary<String, Object>)

Returns an expression to represent a fixed value

Declaration

public static IExpression Dictionary(IDictionary<string, object> value)

Parameters

Type	Name	Description
IDictionary<System.String, System.Object>	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

Double(Double)

Returns an expression to represent a fixed value

Declaration

public static IExpression Double(double value)

Parameters

Type	Name	Description
System.Double	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

Float(Single)

Returns an expression to represent a fixed value

Declaration

public static IExpression Float(float value)

Parameters

Type	Name	Description
System.Single	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

Int(Int32)

Returns an expression to represent a fixed value

Declaration

public static IExpression Int(int value)

Parameters

Type	Name	Description
System.Int32	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

Long(Int64)

Returns an expression to represent a fixed value

Declaration

public static IExpression Long(long value)

Parameters

Type	Name	Description
System.Int64	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

Negated(IExpression)

Returns an expression representing the negated result of an expression

Declaration

public static IExpression Negated(IExpression expression)

Parameters

Type	Name	Description
IExpression	expression	The expression to evaluate

Returns

Type	Description
IExpression	The negated result of the expression

Not(IExpression)

Returns an expression representing the negated result of an expression

Declaration

public static IExpression Not(IExpression expression)

Parameters

Type	Name	Description
IExpression	expression	The expression to evaluate

Returns

Type	Description
IExpression	The negated result of the expression

Parameter(String)

Gets an expression representing a named parameter (as set in Parameters) for use in a query

Declaration

public static IExpression Parameter(string name)

Parameters

Type	Name	Description
System.String	name	The name of the parameter in the parameter set

Returns

Type	Description
IExpression	The expression representing the parameter

Property(String)

Returns an expression representing the value of a named property

Declaration

public static IPropertyExpression Property(string property)

Parameters

Type	Name	Description
System.String	property	The name of the property to fetch

Returns

Type	Description
IPropertyExpression	An expression representing the value of a named property

String(String)

Returns an expression to represent a fixed value

Declaration

public static IExpression String(string value)

Parameters

Type	Name	Description
System.String	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

Value(Object)

Returns an expression to represent a fixed value. It must be one of the allowed types (i.e. the ones allowed in other methods such as String(String)

Declaration

public static IExpression Value(object value)

Parameters

Type	Name	Description
System.Object	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value