org.basex.query.func.bin

Class BinOr

java.lang.Object

org.basex.query.expr.ExprInfo

org.basex.query.expr.Expr

org.basex.query.expr.ParseExpr

org.basex.query.expr.Arr

org.basex.query.func.StandardFunc

org.basex.query.func.bin.BinOr

public final class BinOr
extends StandardFunc

Function implementation.

Author:

BaseX Team 2005-18, BSD License, Christian Gruen

Field Summary

Fields inherited from class org.basex.query.func.StandardFunc

sc, sig, UNROLL_LIMIT

Fields inherited from class org.basex.query.expr.Arr

exprs

Fields inherited from class org.basex.query.expr.ParseExpr

exprType, info

Constructor Summary

Constructors

Constructor and Description
BinOr()

Method Summary

Modifier and Type	Method and Description
Item	item(QueryContext qc, InputInfo ii) Evaluates the expression and returns the resulting item, or a null reference if the expression yields an empty sequence.

Methods inherited from class org.basex.query.func.StandardFunc

checkAdmin, checkArity, checkArity, checkCreate, checkData, checkPath, checkPath, coerceFunc, copy, ctxArg, dataLock, dateTimeToMs, description, equals, has, isFunction, isVacuous, opt, optFirst, optimize, plan, preEval, serialize, toBindings, toCollation, toDBNode, toEncoding, toNodeOrAtomItem, toOptions, toPath, toPath, toString

Methods inherited from class org.basex.query.expr.Arr

accept, allAreValues, checkUp, compile, copyAll, count, exprSize, inline, oneIsEmpty, removable, toString

Methods inherited from class org.basex.query.expr.ParseExpr

adoptType, atomItem, atomValue, checkAllUp, checkNoEmpty, checkNoEmpty, checkNoneUp, checkNoUp, checkType, checkType, checkUp, copyType, ctxValue, ebv, iter, planElem, seqType, size, test, toArray, toArray, toAtomItem, toB64, toB64, toBin, toBin, toBoolean, toBoolean, toBytes, toBytes, toDouble, toDouble, toElem, toEmptyNode, toEmptyNode, toEmptyToken, toFloat, toFunc, toItem, toItem, toLong, toLong, toMap, toMap, toNode, toNode, toNumber, toNumber, toQNm, toQNm, toToken, toToken, toTokenOrNull, value

Methods inherited from class org.basex.query.expr.Expr

atomIter, data, hasFreeVars, indexAccessible, inlineAll, isSimple, iterable, markTailCalls, optimizeEbv, typeCheck, uses, visitAll

Methods inherited from class org.basex.query.expr.ExprInfo

addPlan, addPlan, planAttr, toErrorString

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

BinOr

public BinOr()

Method Detail

item

public Item item(QueryContext qc,
                 InputInfo ii)
          throws QueryException

Description copied from class: Expr

Evaluates the expression and returns the resulting item, or a null reference if the expression yields an empty sequence. If this method is not overwritten, Expr.iter(QueryContext) must be implemented by an expression, as it may be called by this method.

Overrides:

item in class ParseExpr

Parameters:

qc - query context

ii - input info (only required by Seq instances, which have no input info)

Returns:

item or null

Throws:

QueryException - query exception