Package mondrian.olap.fun

Class JavaFunDef

java.lang.Object

org.eigenbase.xom.XMLUtil

org.eigenbase.xom.XOMUtil

mondrian.olap.Util

mondrian.olap.fun.FunUtil

mondrian.olap.fun.FunDefBase

mondrian.olap.fun.JavaFunDef

All Implemented Interfaces:

FunDef

public class JavaFunDef
extends FunDefBase

MDX function which is implemented by a Java method. When the function is executed, the method is invoked via reflection.

Since:

Jan 5, 2008

Author:

wgorman, jhyde

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static @interface	JavaFunDef.Description	Annotation which allows you to tag a Java method with the description of the MDX function it implements.
static @interface	JavaFunDef.FunctionName	Annotation which allows you to tag a Java method with the name of the MDX function it implements.
static @interface	JavaFunDef.Signature	Annotation which allows you to tag a Java method with the signature of the MDX function it implements.
static @interface	JavaFunDef.SyntaxDef	Annotation which allows you to tag a Java method with the syntax of the MDX function it implements.

Nested classes/interfaces inherited from class mondrian.olap.fun.FunUtil

FunUtil.DescendingValueComparator

Nested classes/interfaces inherited from class mondrian.olap.Util

Util.AbstractFlatList<T>, Util.ByteMatcher, Util.ErrorCellValue, Util.Flat2List<T>, Util.Flat3List<T>, Util.Functor1<RT,PT>, Util.GcIterator<T>, Util.MemoryInfo, Util.PropertyList, Util.SqlNullSafeComparator

Field Summary

Fields inherited from class mondrian.olap.fun.FunDefBase

flags, parameterCategories, returnCategory

Fields inherited from class mondrian.olap.fun.FunUtil

BooleanNull, DoubleEmpty, DoubleNull, IntegerNull, NullMember

Fields inherited from class mondrian.olap.Util

DEBUG, EmptyValue, IBM_JVM, JdbcVersion, JVM_INSTANCE_UUID, nl, nullValue, Retrowoven

Constructor Summary

Constructors

Constructor	Description
JavaFunDef(String name, String desc, Syntax syntax, int returnCategory, int[] paramCategories, Method method)	Creates a JavaFunDef.

Method Summary

Modifier and Type	Method	Description
Calc	compileCall(ResolvedFunCall call, ExpCompiler compiler)	Converts a call to this function into executable objects.
static List<FunDef>	scan(Class clazz)	Scans a java class and returns a list of function definitions, one for each static method which is suitable to become an MDX function.

Methods inherited from class mondrian.olap.fun.FunDefBase

createCall, getDescription, getName, getParameterCategories, getResultType, getReturnCategory, getSignature, getSyntax, unparse, validateArg

Methods inherited from class mondrian.olap.fun.FunUtil

avg, box, box, checkIterListResultStyles, checkListResultStyles, compareHierarchically, compareSiblingMembers, compareValues, compareValues, count, decodeCategory, decodeParameterCategories, decodeReturnCategory, decodeSyntacticType, getDimensionDefaultHierarchy, getNonEmptyMemberChildren, getNonEmptyMemberChildrenWithDetails, isAncestorOf, makeNullTuple, max, min, newEvalException, newEvalException, newEvalException, quartile, resolveFunArgs, sum, sumDouble, sumDouble, tupleContainsNullMember, tupleContainsNullMember, worthCaching

Methods inherited from class mondrian.olap.Util

addAppender, addDatabaseTime, addLevelCalculatedMembers, append, appendArrays, areOccurencesEqual, assertPostcondition, assertPostcondition, assertPrecondition, assertPrecondition, assertTrue, assertTrue, badValue, binarySearch, bitSetBetween, camelToUpper, canCast, cancelStatement, caseSensitiveCompareName, cast, cast, castToIterable, checkCJResultLimit, close, commaList, compare, compareIntegers, compareKey, compareName, compileScript, convert, convert, convertOlap4jConnectStringToNativeMondrian, convertStackToString, copyOf, copyOf, copyOf, copyOf, copyOf, createExpr, createRandom, createRootRole, createSimpleValidator, createUdf, dbTimeMillis, deprecated, deprecated, digestMd5, digestSha256, equal, equalName, equals, equals, explain, falseFunctor, filter, flatList, flatList, flatListCopy, generateUuidString, genericArray, getAnnotation, getClosestResource, getDimensionCube, getErrorMessage, getErrorMessage, getExecutorService, getFirstDescendantOnLevel, getMatchingCause, getMemberOrdinalInParent, getMemoryInfo, getScheduledExecutorService, hash, hash, hashArray, identityFunctor, implode, intersect, isBlank, isEmpty, isNull, isSorted, isValidProperty, last, lookup, lookup, lookup, lookup, lookup, lookupCompound, lookupCompound, lookupHierarchyLevel, lookupHierarchyRootMember, lookupHierarchyRootMember, lookupProperty, makeAppender, makeBigDecimalFromDouble, makeFqName, makeFqName, makeFqName, matches, matches, mdxEncodeString, needToImplement, newElementNotFoundException, newError, newError, newIdentityHashSet, newIdentityHashSetFake, newInternal, newInternal, newTimer, nonDbTimeMillis, normalizeName, only, parseCommaList, parseConnectString, parseIdentifier, parseInterval, parseLocale, printMemory, printMemory, quoteForMdx, quoteForMdx, quoteJavaString, quoteMdxIdentifier, quoteMdxIdentifier, quoteMdxIdentifier, quoteMdxIdentifier, quotePattern, readFully, readFully, readURL, readURL, readURL, readVirtualFile, readVirtualFileAsString, removeAppender, replace, replace, replaceProperties, safeGet, setLevel, singleQuoteString, singleQuoteString, sort, sort, threadLocalRemove, toMap, toNullValuesMap, toOlap4j, toOlap4j, toOlap4j, toURL, trueFunctor, unexpected, uniquify, unparse, unparse, wildcardToRegexp

Methods inherited from class org.eigenbase.xom.XOMUtil

addChild, addChild, addChildren, addElement, concatenate, createDefaultParser, discard, discard, discard, discard, discard, discard, discard, discard, discard, getFirstInstance, wrapperToXml

Methods inherited from class org.eigenbase.xom.XMLUtil

getFirstTagName, printAtt, printAtt, printAtt, printAtt, printPCDATA, printPCDATA, printPCDATA, quoteAtt, quoteAtt, quoteAtt, quoteAtt, quotePCDATA, stringEncodeXML, stringHasXMLSpecials

Methods inherited from class java.lang.Object

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

Constructor Details

JavaFunDef

public JavaFunDef(String name,
 String desc,
 Syntax syntax,
 int returnCategory,
 int[] paramCategories,
 Method method)

Creates a JavaFunDef.

Parameters:

name - Name

desc - Description

syntax - Syntax

returnCategory - Return type

paramCategories - Parameter types

method - Java method which implements this function

Method Details

compileCall

public Calc compileCall(ResolvedFunCall call,
 ExpCompiler compiler)

Description copied from interface: FunDef

Converts a call to this function into executable objects.

The result must implement the appropriate interface for the result type. For example, a function which returns an integer must return an object which implements IntegerCalc.

Specified by:

compileCall in interface FunDef

Overrides:

compileCall in class FunDefBase

scan

public static List<FunDef> scan(Class clazz)

Scans a java class and returns a list of function definitions, one for each static method which is suitable to become an MDX function.

Parameters:

clazz - Class

Returns:

List of function definitions