ch.ethz.mxquery.functions.fn
Class MaxMin

java.lang.Object
  ch.ethz.mxquery.model.Iterator
      ch.ethz.mxquery.model.TokenBasedIterator
          ch.ethz.mxquery.functions.fn.MaxMin

All Implemented Interfaces:

XDMIterator, Traversable

public class MaxMin
extends TokenBasedIterator

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

MaxMin()

Method Summary

TypeInfo	getStaticType() Return the return type if it can be statically determined
void	setMAXorMIN(boolean max) should be set in constructor, but then dynamic class instance creation from properties becomes harder

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

next

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

addPredicates, close, copy, copyInts, copyIterators, copyQNames, copyStrings, copyTypeInfos, getAllSubIters, getAllSubItersRecursive, getContext, getExpressionCategoryType, getLoc, getPendingUpdateList, getPredicates, 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

MaxMin

public MaxMin()

Method Detail

setMAXorMIN

public void setMAXorMIN(boolean max)

should be set in constructor, but then dynamic class instance creation from properties becomes harder

Parameters:

max - param max = false -> compute MIN param max = true -> compute MAX

getStaticType

public TypeInfo getStaticType()

Description copied from interface: XDMIterator

Return the return type if it can be statically determined

Specified by:

getStaticType in interface XDMIterator

Overrides:

getStaticType in class Iterator

Returns:

a Type info carrying the most precise static type that could be determined. If no specific type could be determined, the type is ITEM*