ch.ethz.mxquery.functions.ft
Class Score

java.lang.Object
  ch.ethz.mxquery.model.Iterator
      ch.ethz.mxquery.model.TokenBasedIterator
          ch.ethz.mxquery.functions.ft.Score

All Implemented Interfaces:

XDMIterator, Traversable

public class Score
extends TokenBasedIterator

Implementation of Scoring for a let clause

Field Summary

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

Score(XDMIterator inIt, Context ctx, QueryLocation loc)

Method Summary

Token

next() generate next Token, needs to be implemented by the respective iterator

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

Score

public Score(XDMIterator inIt,
             Context ctx,
             QueryLocation loc)

Method Detail

next

public Token next()
           throws MXQueryException

Description copied from class: TokenBasedIterator

generate next Token, needs to be implemented by the respective iterator

Specified by:

next in interface XDMIterator

Overrides:

next in class TokenBasedIterator

Returns:

The first call will give the type of first Token of the result, the second the second and so on. When the last token has been produced, the type of an END_SEQUENCE token will be returned

Throws:

MXQueryException