org.apache.marmotta.ldpath.model.functions.text

Class StrLeftFunction<Node>

java.lang.Object

org.apache.marmotta.ldpath.api.functions.SelectorFunction<Node>

org.apache.marmotta.ldpath.model.functions.text.StrLeftFunction<Node>

All Implemented Interfaces:

NodeFunction<Collection<Node>,Node>, LDPathConstruct<Node>

public class StrLeftFunction<Node>
extends SelectorFunction<Node>

Constructor Summary

Constructors

Constructor and Description
StrLeftFunction()

Method Summary

Methods

Modifier and Type	Method and Description
Collection<Node>	apply(RDFBackend<Node> backend, Node context, Collection<Node>... args) Apply the function to the list of nodes passed as arguments and return the result as type T.
String	getDescription() A short human-readable description of what the node function does.
protected String	getLocalName()
String	getSignature() A string describing the signature of this node function, e.g.

Methods inherited from class org.apache.marmotta.ldpath.api.functions.SelectorFunction

getPathExpression

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StrLeftFunction

public StrLeftFunction()

Method Detail

apply

public Collection<Node> apply(RDFBackend<Node> backend,
                     Node context,
                     Collection<Node>... args)
                       throws IllegalArgumentException

Description copied from interface: NodeFunction

Apply the function to the list of nodes passed as arguments and return the result as type T. Throws IllegalArgumentException if the function cannot be applied to the nodes passed as argument or the number of arguments is not correct.

context - the context of the execution. Same as using the NodeSelector '.' as parameter.

args - a nested list of KiWiNodes

Returns:

Throws:

IllegalArgumentException

getSignature

public String getSignature()

Description copied from interface: NodeFunction

A string describing the signature of this node function, e.g. "fn:content(uris : Nodes) : Nodes". The syntax for representing the signature can be chosen by the implementer. This method is for informational purposes only.

Returns:

getDescription

public String getDescription()

Description copied from interface: NodeFunction

A short human-readable description of what the node function does.

Returns:

getLocalName

protected String getLocalName()

Specified by:

getLocalName in class SelectorFunction<Node>