Package mondrian.olap.fun
Class ExtractFunDef
- java.lang.Object
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- org.eigenbase.xom.XMLUtil
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- org.eigenbase.xom.XOMUtil
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- mondrian.olap.Util
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- mondrian.olap.fun.FunUtil
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- mondrian.olap.fun.FunDefBase
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- mondrian.olap.fun.ExtractFunDef
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- All Implemented Interfaces:
FunDef
class ExtractFunDef extends FunDefBase
Definition of theExtract
MDX function.Syntax:
Extract(<Set>, <Hierarchy>[, <Hierarchy>...])
- Since:
- Jun 10, 2007
- Author:
- jhyde
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Nested Class Summary
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Nested classes/interfaces inherited from class mondrian.olap.fun.FunUtil
FunUtil.DescendingValueComparator, FunUtil.Flag, FunUtil.ObjIntPair<T>, FunUtil.OrderKey, FunUtil.Quicksorter<T>, FunUtil.SetWrapper, FunUtil.SortKeySpec, FunUtil.TupleExpMemoComparator
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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
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Field Summary
Fields Modifier and Type Field Description (package private) static ResolverBase
Resolver
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Fields inherited from class mondrian.olap.fun.FunDefBase
flags, parameterCategories, returnCategory, signature
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Fields inherited from class mondrian.olap.fun.FunUtil
BooleanNull, DoubleEmpty, DoubleNull, emptyStringArray, IntegerNull, NullMember
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Fields inherited from class mondrian.olap.Util
DEBUG, EmptyValue, IBM_JVM, JdbcVersion, JVM_INSTANCE_UUID, nl, nullValue, Retrowoven
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Calc
compileCall(ResolvedFunCall call, ExpCompiler compiler)
Converts a call to this function into executable objects.Type
getResultType(Validator validator, Exp[] args)
Returns the type of a call to this function with a given set of arguments.-
Methods inherited from class mondrian.olap.fun.FunDefBase
castType, createCall, getDescription, getName, getParameterCategories, getReturnCategory, getSignature, getSyntax, unparse, validateArg
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Methods inherited from class mondrian.olap.fun.FunUtil
addMembers, addMembers, addUnique, ancestor, appendTuple, avg, box, box, checkCompatible, checkIterListResultStyles, checkListResultStyles, compareHierarchically, compareSiblingMembers, compareValues, compareValues, correlation, count, cousin, covariance, createDummyFunDef, decodeCategory, decodeParameterCategories, decodeReturnCategory, decodeSyntacticType, equalTuple, evaluateMembers, evaluateSet, evaluateSet, evaluateTuples, getDimensionDefaultHierarchy, getLiteralArg, getLiteralArg, getNonEmptyLevelMembers, getNonEmptyMemberChildren, getNonEmptyMemberChildrenWithDetails, hierarchizeMemberList, hierarchizeTupleList, hierarchyMembers, isAncestorOf, levelMembers, makeNullMember, makeNullTuple, max, memberRange, min, newEvalException, newEvalException, newEvalException, parseMember, parseMemberList, parseTuple, parseTupleList, partiallySortMembers, partiallySortTuples, partialSort, percentile, periodsToDate, quartile, removeCalculatedMembers, removeCalculatedMembers, resolveFunArgs, sortMembers, sortMembers, sortTuples, sortTuples, stablePartialSort, stablePartialSort, stablePartialSortArray, stablePartialSortJulian, stablePartialSortMarc, stablePartialSortPedro, stdev, sum, sumDouble, sumDouble, toPercent, tupleContainsNullMember, tupleContainsNullMember, var, worthCaching
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Methods inherited from class mondrian.olap.Util
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, 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, 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, replace, replace, replaceProperties, safeGet, singleQuoteString, singleQuoteString, sort, sort, threadLocalRemove, toMap, toNullValuesMap, toOlap4j, toOlap4j, toOlap4j, toURL, trueFunctor, unexpected, uniquify, unparse, unparse, wildcardToRegexp
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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
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Methods inherited from class org.eigenbase.xom.XMLUtil
getFirstTagName, printAtt, printAtt, printAtt, printAtt, printPCDATA, printPCDATA, printPCDATA, quoteAtt, quoteAtt, quoteAtt, quoteAtt, quotePCDATA, stringEncodeXML, stringHasXMLSpecials
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Field Detail
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Resolver
static final ResolverBase Resolver
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Method Detail
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getResultType
public Type getResultType(Validator validator, Exp[] args)
Description copied from class:FunDefBase
Returns the type of a call to this function with a given set of arguments. The default implementation makes the coarse assumption that the return type is in some way related to the type of the first argument. Operators whose arguments don't follow the requirements of this implementation should override this method. If the function definition says it returns a literal type (numeric, string, symbol) then it's a fair guess that the function call returns the same kind of value. If the function definition says it returns an object type (cube, dimension, hierarchy, level, member) then we check the first argument of the function. Suppose that the function definition says that it returns a hierarchy, and the first argument of the function happens to be a member. Then it's reasonable to assume that this function returns a member.- Overrides:
getResultType
in classFunDefBase
- Parameters:
validator
- Validatorargs
- Arguments to the call to this operator- Returns:
- result type of a call this function
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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 interfaceFunDef
- Overrides:
compileCall
in classFunDefBase
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