Package com.inductiveautomation.ignition.common.expressions

Class ContextDelegateFunctionFactory

java.lang.Object

com.inductiveautomation.ignition.common.expressions.ContextDelegateFunctionFactory

All Implemented Interfaces:

FunctionFactory

public class ContextDelegateFunctionFactory
extends java.lang.Object
implements FunctionFactory

Many custom function factories get cached, but when delegating to the factory provided by the context, that shouldn't happen. This class can be used as the parent of those other factories, and will look up the context factory fresh each time.

Constructor Summary

Constructors

Constructor	Description
ContextDelegateFunctionFactory(CommonContext context)

Method Summary

Modifier and Type	Method	Description
protected FunctionFactory	f()
java.util.Set<java.lang.String>	getCategories()	Return a sequence of categories to organize functions.
Function	getFunction(java.lang.String name)	Look up the function with the given name.
java.util.Set<java.lang.String>	getFunctionNames()	Returns a set of all the registered function names.
java.util.Set<java.lang.String>	getFunctionsInCategory(java.lang.String name)

Methods inherited from class java.lang.Object

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

Constructor Detail

ContextDelegateFunctionFactory

public ContextDelegateFunctionFactory(CommonContext context)

Method Detail

f

protected FunctionFactory f()

getFunction

public Function getFunction(java.lang.String name)

Description copied from interface: FunctionFactory

Look up the function with the given name. This function will be in a state that is ready to use in an expression, meaning that it may be a cloned copy for functions that keep state.

Specified by:

getFunction in interface FunctionFactory

Returns:

The function, or null

getFunctionNames

public java.util.Set<java.lang.String> getFunctionNames()

Description copied from interface: FunctionFactory

Returns a set of all the registered function names. Used for syntax highlighting in the designer.

Specified by:

getFunctionNames in interface FunctionFactory

getCategories

public java.util.Set<java.lang.String> getCategories()

Description copied from interface: FunctionFactory

Return a sequence of categories to organize functions. Used to generate the popup menu in the designer. Will automatically organize into submenus based on forward-slash in path.

Specified by:

getCategories in interface FunctionFactory

getFunctionsInCategory

public java.util.Set<java.lang.String> getFunctionsInCategory(java.lang.String name)

Specified by:

getFunctionsInCategory in interface FunctionFactory