Class LogFunction

Represents the Leviathan lfn:log() function.

Inheritance
object
BaseBinaryExpression
LogFunction
Implements
Inherited Members
Namespace: VDS.RDF.Query.Expressions.Functions.Leviathan.Numeric
Assembly: dotNetRdf.dll
Syntax
public class LogFunction : BaseBinaryExpression, ISparqlExpression

Constructors

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LogFunction(ISparqlExpression)

Creates a new Leviathan Log Function.

Declaration
public LogFunction(ISparqlExpression arg)
Parameters
Type Name Description
ISparqlExpression arg

Expression.
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LogFunction(ISparqlExpression, ISparqlExpression)

Creates a new Leviathan Log Function.

Declaration
public LogFunction(ISparqlExpression arg, ISparqlExpression logBase)
Parameters
Type Name Description
ISparqlExpression arg

Expression.
ISparqlExpression logBase

Log Base Expression.

Properties

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Functor

Gets the Functor of the Expression.

Declaration
public override string Functor { get; }
Property Value
Type Description
string
Overrides
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Log10

Get whether the function was created as a default base-10 log function.

Declaration
public bool Log10 { get; }
Property Value
Type Description
bool
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Type

Gets the type of the expression.

Declaration
public override SparqlExpressionType Type { get; }
Property Value
Type Description
SparqlExpressionType
Overrides

Methods

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Accept<T>(ISparqlExpressionVisitor<T>)

Accept a ISparqlExpressionVisitor<T> by calling the appropriate method on its interface for this expression.

Declaration
public override T Accept<T>(ISparqlExpressionVisitor<T> visitor)
Parameters
Type Name Description
ISparqlExpressionVisitor<T> visitor

The visitor to be invoked.
Returns
Type Description
T

The result of calling the method on the visitor.
Type Parameters
Name Description
T

Type of result that the called method returns.
Overrides
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Accept<TResult, TContext, TBinding>(ISparqlExpressionProcessor<TResult, TContext, TBinding>, TContext, TBinding)

Accept a ISparqlExpressionProcessor<TResult, TContext, TBinding> by calling the appropriate method on its interface for this expression.

Declaration
public override TResult Accept<TResult, TContext, TBinding>(ISparqlExpressionProcessor<TResult, TContext, TBinding> processor, TContext context, TBinding binding)
Parameters
Type Name Description
ISparqlExpressionProcessor<TResult, TContext, TBinding> processor

The processor to be invoked.
TContext context

The context object to use for processing.
TBinding binding

The binding to be processed.
Returns
Type Description
TResult
Type Parameters
Name Description
TResult

Type of result that the process method returns.
TContext

The type of the context parameter to the process method.
TBinding

The type of the binding parameter of the process method.
Overrides
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ToString()

Gets the String representation of the function.

Declaration
public override string ToString()
Returns
Type Description
string
Overrides
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Transform(IExpressionTransformer)

Transforms the Expression using the given Transformer.

Declaration
public override ISparqlExpression Transform(IExpressionTransformer transformer)
Parameters
Type Name Description
IExpressionTransformer transformer

Expression Transformer.
Returns
Type Description
ISparqlExpression
Overrides

Implements

Extension Methods