org.teiid.query.function.source

Class SystemSource

java.lang.Object

org.teiid.query.function.UDFSource

org.teiid.query.function.source.SystemSource

All Implemented Interfaces:

FunctionMetadataSource, FunctionCategoryConstants

public class SystemSource
extends UDFSource
implements FunctionCategoryConstants

This metadata source has metadata for the hard-coded system functions. All system functions are described by this metadata.

Field Summary

Fields inherited from class org.teiid.query.function.UDFSource

functions

Fields inherited from interface org.teiid.query.function.metadata.FunctionCategoryConstants

AGGREGATE, CONVERSION, DATETIME, GEOGRAPHY, GEOMETRY, JSON, MISCELLANEOUS, NUMERIC, SECURITY, STRING, SYSTEM, XML

Constructor Summary

Constructors

Constructor and Description
SystemSource() Construct a source of system metadata.

Method Summary

Modifier and Type	Method and Description
static FunctionMethod	createSyntheticMethod(String name, String description, String category, String invocationClass, String invocationMethod, FunctionParameter[] inputParams, FunctionParameter outputParam)
Collection<FunctionMethod>	getFunctionMethods() Get all function signatures for this metadata source.

Methods inherited from class org.teiid.query.function.UDFSource

getClassLoader, getInvocationClass, setClassLoader

Methods inherited from class java.lang.Object

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

Constructor Detail

SystemSource

public SystemSource()

Construct a source of system metadata.

Method Detail

getFunctionMethods

public Collection<FunctionMethod> getFunctionMethods()

Get all function signatures for this metadata source.

Specified by:

getFunctionMethods in interface FunctionMetadataSource

Overrides:

getFunctionMethods in class UDFSource

Returns:

Unordered collection of FunctionMethods

createSyntheticMethod

public static FunctionMethod createSyntheticMethod(String name,
                                                   String description,
                                                   String category,
                                                   String invocationClass,
                                                   String invocationMethod,
                                                   FunctionParameter[] inputParams,
                                                   FunctionParameter outputParam)