ch.ethz.mxquery.iterators.forseq
Class ForseqWindowIndexIterator

java.lang.Object
  ch.ethz.mxquery.model.Iterator
      ch.ethz.mxquery.model.TokenBasedIterator
          ch.ethz.mxquery.iterators.forseq.ForseqIterator
              ch.ethz.mxquery.iterators.forseq.ForseqWindowIterator
                  ch.ethz.mxquery.iterators.forseq.ForseqWindowIndexIterator

All Implemented Interfaces:

XDMIterator, Traversable

public final class ForseqWindowIndexIterator
extends ForseqWindowIterator

The index version of the Window FORSEQ for sliding and landmark windows. Additionally to the reverse index on windows also memorization is applied.

Field Summary

Fields inherited from class ch.ethz.mxquery.iterators.forseq.ForseqIterator

GENERAL_WINDOW, LANDMARK_WINDOW, ORDER_MODE_END, ORDER_MODE_ENDSTART, ORDER_MODE_NONE, SLIDING_WINDOW, TUMBLING_WINDOW

Fields inherited from interface ch.ethz.mxquery.model.XDMIterator

EXPR_CATEGORY_SEQUENTIAL, EXPR_CATEGORY_SIMPLE, EXPR_CATEGORY_UPDATING, EXPR_CATEGORY_VACUOUS, EXPR_PARAM_CHEAPEVAL, EXPR_PARAM_VARIABLE, EXPR_PARAM_WINDOW, EXPR_PARAM_XDMGEN

Constructor Summary

ForseqWindowIndexIterator(Context ctx, int windowType, QName var, TypeInfo t, XDMIterator seq, WindowVariable[] startVars, Iterator startExpr, WindowVariable[] endVars, Iterator endExpr, boolean forceEnd, boolean onNewStart, int orderMode, QueryLocation location, DTerm startTerms, DTerm endTerms, Index index, CompareLiteralIndexSchema[] indexes, boolean startEndDependenciesWithoutIndex)

Method Summary

Methods inherited from class ch.ethz.mxquery.iterators.forseq.ForseqWindowIterator

getAllSubIters, getForseqVars, getInnermostContext, setContext, setResettable, traverseIteratorTree, updateVarHolders

Methods inherited from class ch.ethz.mxquery.iterators.forseq.ForseqIterator

copy, getForseqVariable, isParallelAccess, next, setParallelAccess

Methods inherited from class ch.ethz.mxquery.model.Iterator

addPredicates, close, copyInts, copyIterators, copyQNames, copyStrings, copyTypeInfos, getAllSubItersRecursive, getContext, getExpressionCategoryType, getLoc, getPendingUpdateList, getPredicates, getStaticType, getSubIters, hasPredicates, isConstModePreserve, isExprParameter, isOpen, isResettable, removePredicates, reset, setConstModePreserve, setLoc, setOrderByExpr, setParam, setReturnExpr, setSubIters, setSubIters, setSubIters, setWhereExpr, traverse

Methods inherited from class java.lang.Object

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

Constructor Detail

ForseqWindowIndexIterator

public ForseqWindowIndexIterator(Context ctx,
                                 int windowType,
                                 QName var,
                                 TypeInfo t,
                                 XDMIterator seq,
                                 WindowVariable[] startVars,
                                 Iterator startExpr,
                                 WindowVariable[] endVars,
                                 Iterator endExpr,
                                 boolean forceEnd,
                                 boolean onNewStart,
                                 int orderMode,
                                 QueryLocation location,
                                 DTerm startTerms,
                                 DTerm endTerms,
                                 Index index,
                                 CompareLiteralIndexSchema[] indexes,
                                 boolean startEndDependenciesWithoutIndex)
                          throws MXQueryException

Throws:

MXQueryException