com.metamatrix.query.function
Class UDFSource

java.lang.Object
  com.metamatrix.query.function.UDFSource

All Implemented Interfaces:

FunctionMetadataSource

public class UDFSource
extends java.lang.Object
implements FunctionMetadataSource

Constructor Summary

UDFSource(java.io.InputStream udfStream, java.lang.ClassLoader classloader)

UDFSource(java.io.InputStream udfStream, java.net.URL[] classpath)

UDFSource(java.net.URL url)

UDFSource(java.net.URL url, java.net.URL[] classpath)

Method Summary

java.util.Collection	getFunctionMethods() This method requests that the source return all com.metamatrix.query.function.FunctionMethods the source knows about.
java.lang.Class	getInvocationClass(java.lang.String className) This method determines where the invocation classes specified in the function metadata are actually retrieved from.
void	loadFunctions(java.io.InputStream in)

Methods inherited from class java.lang.Object

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

Constructor Detail

UDFSource

public UDFSource(java.net.URL url)
          throws java.io.IOException

Throws:

java.io.IOException

UDFSource

public UDFSource(java.net.URL url,
                 java.net.URL[] classpath)
          throws java.io.IOException

Throws:

java.io.IOException

UDFSource

public UDFSource(java.io.InputStream udfStream,
                 java.net.URL[] classpath)
          throws java.io.IOException

Throws:

java.io.IOException

UDFSource

public UDFSource(java.io.InputStream udfStream,
                 java.lang.ClassLoader classloader)
          throws java.io.IOException

Throws:

java.io.IOException

Method Detail

getFunctionMethods

public java.util.Collection getFunctionMethods()

Description copied from interface: FunctionMetadataSource

This method requests that the source return all com.metamatrix.query.function.FunctionMethods the source knows about. This can occur in several situations - on initial registration with the FunctionLibraryManager, on a general reload, etc. This may be called multiple times and should always return the newest information available.

Specified by:

getFunctionMethods in interface FunctionMetadataSource

Returns:

Collection of FunctionMethod objects

getInvocationClass

public java.lang.Class getInvocationClass(java.lang.String className)
                                   throws java.lang.ClassNotFoundException

Description copied from interface: FunctionMetadataSource

This method determines where the invocation classes specified in the function metadata are actually retrieved from.

Specified by:

getInvocationClass in interface FunctionMetadataSource

Parameters:

className - Name of class

Returns:

Class reference

Throws:

java.lang.ClassNotFoundException - If class could not be found

loadFunctions

public void loadFunctions(java.io.InputStream in)
                   throws java.io.IOException

Specified by:

loadFunctions in interface FunctionMetadataSource

Throws:

java.io.IOException