Package mondrian.olap.fun

Class CacheFunDef

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.CacheFunDef

All Implemented Interfaces:

FunDef

public class CacheFunDef
extends FunDefBase

Definition of the Cache system function, which is smart enough to evaluate its argument only once.

Since:

2005/8/14

Author:

jhyde

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CacheFunDef.CacheFunResolver

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

Method Summary

Modifier and Type	Method	Description
Calc	compileCall(ResolvedFunCall call, ExpCompiler compiler)	Converts a call to this function into executable objects.
void	unparse(Exp[] args, PrintWriter pw)	Converts a function call into MDX source code.

Methods inherited from class mondrian.olap.fun.FunDefBase

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

Method Details

unparse

public void unparse(Exp[] args,
 PrintWriter pw)

Description copied from interface: FunDef

Converts a function call into MDX source code.

Specified by:

unparse in interface FunDef

Overrides:

unparse in class FunDefBase

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