org.mmbase.util.functions
Class PatternNodeFunctionProvider

java.lang.Object
  org.mmbase.util.functions.FunctionProvider
      org.mmbase.util.functions.PatternNodeFunctionProvider

public class PatternNodeFunctionProvider
extends FunctionProvider

This Function provider creates function objects , which can create a String function based on a pattern. Several kind of patterns are recognized. {PARAM.abc} creates a parameter 'abc' and puts the value of it on that place in the result. {NODE.title}, puts the title field of the node on which the function was applied on that place, and {REQUEST.getContextPath} applies that method to the request parameter (and the result is added). {INITPARAM.xyz} access the servletcontext init parameters xyz. It is also possible to use request parameters and attributes with {REQUESTPARAM.xxx} and {REQUESTATTRIBUTE.yyy}. The functions which are created have silly names like string0, string1 etc, so you want to wrap them in a function with a reasonable name (this is done when specifying this thing in the builder xml).

Since:

MMBase-1.8

Version:

$Id: PatternNodeFunctionProvider.java 41943 2010-04-16 17:18:19Z michiel $

Author:

Michiel Meeuwissen

Nested Class Summary

protected static class

PatternNodeFunctionProvider.PatternNodeFunction

Field Summary

Fields inherited from class org.mmbase.util.functions.FunctionProvider

functions, getFunctions

Constructor Summary

PatternNodeFunctionProvider()

Method Summary

Function<String>	getFunction(String name) Returns the Function object with given name.
static PatternNodeFunctionProvider	getInstance()
static Map<String,Method>	getRequestMethods(String template)
static void	handleRequest(StringBuffer sb, Parameters parameters, Map<String,Method> requestMethods)

Methods inherited from class org.mmbase.util.functions.FunctionProvider

addFunction, createParameters, getFunctions, getFunctionValue, newFunctionInstance

Methods inherited from class java.lang.Object

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

Constructor Detail

PatternNodeFunctionProvider

public PatternNodeFunctionProvider()

Method Detail

getInstance

public static PatternNodeFunctionProvider getInstance()

getFunction

public Function<String> getFunction(String name)

Description copied from class: FunctionProvider

Returns the Function object with given name.

Overrides:

getFunction in class FunctionProvider

Returns:

Function object or null if no such function is provided.

getRequestMethods

public static Map<String,Method> getRequestMethods(String template)

handleRequest

public static void handleRequest(StringBuffer sb,
                                 Parameters parameters,
                                 Map<String,Method> requestMethods)

Parameters:

sb - StringBuffer (not a StringBuilder, because there is no appendTail(StringBuilder)...)

Since:

MMBase-1.9