Package org.basex.query.func.fn
Class FnLowest
- java.lang.Object
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- org.basex.query.expr.ExprInfo
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- org.basex.query.expr.Expr
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- org.basex.query.expr.ParseExpr
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- org.basex.query.expr.Arr
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- org.basex.query.func.StandardFunc
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- org.basex.query.func.fn.FnLowest
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- Direct Known Subclasses:
FnHighest
public class FnLowest extends StandardFunc
Function implementation.- Author:
- BaseX Team 2005-23, BSD License, Christian Gruen
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Field Summary
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Fields inherited from class org.basex.query.func.StandardFunc
definition, sc
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Constructor Summary
Constructors Constructor Description FnLowest()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
has(Flag... flags)
Indicates if an expression has one of the specified compiler properties.protected Expr
opt(CompileContext cc)
Performs function specific optimizations.Value
value(QueryContext qc)
Evaluates the expression and returns the resulting value.-
Methods inherited from class org.basex.query.func.StandardFunc
checkPerm, coerceFunc, compileData, copy, dataLock, defined, description, embed, equals, optFirst, optFirst, optimize, serialize, simplifyArgs, toBaseUri, toBindings, toCollation, toCollationOrDefault, toContent, toContent, toData, toDate, toDBNode, toEncodingOrNull, toFunction, toFunction, toIO, toIO, toMs, toName, toNodeOrAtomItem, toOptions, toOptions, toPath, toPath, toStr, toString, toXml, toZeroStr, updating, vacuous
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Methods inherited from class org.basex.query.expr.Arr
accept, allAreValues, arg, args, checkUp, compile, copyAll, count, exprSize, flatten, inline, inlineable, mayBePositional, removeEmpty, simplifyAll
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Methods inherited from class org.basex.query.expr.ParseExpr
adoptType, atomValue, checkAllUp, checkNoEmpty, checkNoEmpty, checkNoneUp, checkNoUp, checkType, checkType, checkUp, copyType, ctxValue, data, ebv, info, item, iter, refineType, seqType, size, test, toArray, toArray, toAtomItem, toB64, toB64, toB64OrNull, toBin, toBin, toBoolean, toBoolean, toBooleanOrFalse, toBytes, toBytes, toDouble, toDouble, toElem, toElem, toFloat, toFunction, toItem, toItem, toLong, toLong, toMap, toMap, toNode, toNode, toNodeOrNull, toNumber, toNumberOrNull, toQNm, toQNmOrNull, toString, toString, toStringOrNull, toToken, toToken, toTokenOrNull, toZeroToken
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Methods inherited from class org.basex.query.expr.Expr
arg, atomItem, atomIter, ddo, funcType, hasFreeVars, indexAccessible, isSimple, markTailCalls, mergeEbv, optimizePos, simplify, simplifyFor, typeCheck, uses, visitAll
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Methods inherited from class org.basex.query.expr.ExprInfo
toErrorString, toString
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Method Detail
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value
public Value value(QueryContext qc) throws QueryException
Description copied from class:Expr
Evaluates the expression and returns the resulting value. If this method is not implemented,Expr.item(QueryContext, InputInfo)
must be implemented instead.- Overrides:
value
in classParseExpr
- Parameters:
qc
- query context- Returns:
- value
- Throws:
QueryException
- query exception
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opt
protected Expr opt(CompileContext cc) throws QueryException
Description copied from class:StandardFunc
Performs function specific optimizations.- Overrides:
opt
in classStandardFunc
- Parameters:
cc
- compilation context- Returns:
- optimized or original expression
- Throws:
QueryException
- query exception
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has
public boolean has(Flag... flags)
Description copied from class:Expr
Indicates if an expression has one of the specified compiler properties. This method must only be called at compile time. It is invoked to test properties of sub-expressions. It returnstrue
if at least flag matches an expression.- Overrides:
has
in classStandardFunc
- Parameters:
flags
- flags to be checked- Returns:
- result of check
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