Class Expression

A factory for unary IExpression operators

Inheritance

object

Expression

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Couchbase.Lite.Query

Assembly: Couchbase.Lite.dll

Syntax

public static class Expression

Methods

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All()

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

Declaration

public static IPropertyExpression All()

Returns

Type	Description
IPropertyExpression	The expression representing '*'

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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

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Boolean(bool)

Returns an expression to represent a fixed bool value

Declaration

public static IExpression Boolean(bool value)

Parameters

Type	Name	Description
bool	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

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Date(DateTimeOffset)

Returns an expression to represent a fixed DateTimeOffset 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

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Dictionary(IDictionary<string, object>)

Returns an expression to represent a fixed IDictionary<TKey, TValue> value

Declaration

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

Parameters

Type	Name	Description
IDictionary<string, object>	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

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Double(double)

Returns an expression to represent a fixed double value

Declaration

public static IExpression Double(double value)

Parameters

Type	Name	Description
double	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

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Float(float)

Returns an expression to represent a fixed float value

Declaration

public static IExpression Float(float value)

Parameters

Type	Name	Description
float	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

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FullTextIndex(string)

Returns an expression to represent a full text index to use when performing FTS queries

Declaration

public static IFullTextIndexExpression FullTextIndex(string name)

Parameters

Type	Name	Description
string	name	The name of the index

Returns

Type	Description
IFullTextIndexExpression	An expression representing the index

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Int(int)

Returns an expression to represent a fixed int value

Declaration

public static IExpression Int(int value)

Parameters

Type	Name	Description
int	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

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Long(long)

Returns an expression to represent a fixed long value

Declaration

public static IExpression Long(long value)

Parameters

Type	Name	Description
long	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

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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

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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

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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
string	name	The name of the parameter in the parameter set

Returns

Type	Description
IExpression	The expression representing the parameter

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Property(string)

Returns an expression representing the value of a named property

Declaration

public static IPropertyExpression Property(string property)

Parameters

Type	Name	Description
string	property	The name of the property to fetch

Returns

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

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String(string)

Returns an expression to represent a fixed string value

Declaration

public static IExpression String(string value)

Parameters

Type	Name	Description
string	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value

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Value(object)

Returns an expression to represent a fixed object 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
object	value	The value to use

Returns

Type	Description
IExpression	An expression representing the fixed value