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java.lang.Objectorg.basex.data.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.FNMap
public final class FNMap
Functions on maps.
Nested Class Summary |
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Nested classes/interfaces inherited from class org.basex.query.expr.Expr |
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Expr.Flag |
Field Summary |
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Fields inherited from class org.basex.query.expr.Arr |
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expr |
Fields inherited from class org.basex.query.expr.ParseExpr |
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info, size, type |
Constructor Summary | |
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FNMap(InputInfo ii,
Function f,
Expr... e)
Constructor. |
Method Summary | |
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Item |
item(QueryContext ctx,
InputInfo ii)
Evaluates the expression and returns the resulting item or a null reference, if the expression yields an empty sequence. |
Iter |
iter(QueryContext ctx)
Evaluates the expression and returns an iterator on the resulting items. |
Value |
value(QueryContext ctx)
Evaluates the expression and returns the resulting value. |
Methods inherited from class org.basex.query.func.StandardFunc |
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atom, bindings, cache, checkData, checkFile, compile, copy, dataLock, dateTimeToMs, description, encoding, has, isFunction, isVacuous, oneOf, opt, optimize, plan, toString |
Methods inherited from class org.basex.query.expr.Arr |
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accept, allAreValues, checkNoUp, checkUp, copyAll, count, exprSize, indexEquivalent, inline, removable, toString |
Methods inherited from class org.basex.query.expr.ParseExpr |
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checkAdmin, checkAllUp, checkBinary, checkBln, checkColl, checkCreate, checkCtx, checkDbl, checkDBNode, checkEStr, checkEStr, checkFunc, checkItem, checkItr, checkItr, checkMap, checkNode, checkNode, checkNode, checkNoEmpty, checkNoneUp, checkNoUp, checkQNm, checkStr, checkStr, checkStrBin, checkType, checkWrite, compBln, copyType, ebv, optPre, preEval, size, test, type |
Methods inherited from class org.basex.query.expr.Expr |
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addText, compEbv, copy, hasFreeVars, indexAccessible, inlineAll, isEmpty, isItem, isValue, iterable, markTailCalls, sameAs, uses, visitAll |
Methods inherited from class org.basex.data.ExprInfo |
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addPlan, addPlan, info, planAttr, planElem |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public FNMap(InputInfo ii, Function f, Expr... e)
ii
- input infof
- function definitione
- argumentsMethod Detail |
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public Iter iter(QueryContext ctx) throws QueryException
Expr
Expr.item(org.basex.query.QueryContext, org.basex.util.InputInfo)
must be implemented
by an expression, as it may be called by this method.
iter
in class ParseExpr
ctx
- query context
QueryException
- query exceptionpublic Value value(QueryContext ctx) throws QueryException
Expr
value
in class ParseExpr
ctx
- query context
QueryException
- query exceptionpublic Item item(QueryContext ctx, InputInfo ii) throws QueryException
Expr
null
reference, if the expression yields an empty sequence.
If this method is not overwritten, Expr.iter(org.basex.query.QueryContext)
must be implemented
by an expression, as it may be called by this method.
item
in class ParseExpr
ctx
- query contextii
- input info
QueryException
- query exception
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