Package org.basex.query.expr.ft
Class FTExtension
java.lang.Object
org.basex.query.expr.ExprInfo
org.basex.query.expr.Expr
org.basex.query.expr.ParseExpr
org.basex.query.expr.ft.FTExpr
org.basex.query.expr.ft.FTExtension
FTExtensionSelection expression.
- Author:
- BaseX Team 2005-21, BSD License, Leo Woerteler
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Field Summary
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptioncopy(CompileContext cc, IntObjMap<Var> vm) Copies an expression.booleanThis function is e.g.item(QueryContext qc, InputInfo ii) This method is called by the sequential full-text evaluation.iter(QueryContext qc) This method is called by the index-based full-text evaluation.voidCreates a query plan.voidplan(QueryString qs) Creates a query string.Methods inherited from class org.basex.query.expr.ft.FTExpr
accept, checkUp, compile, count, exprSize, has, inline, inlineable, optimize, usesExclude, valueMethods inherited from class org.basex.query.expr.ParseExpr
adoptType, atomValue, checkAllUp, checkNoEmpty, checkNoEmpty, checkNoneUp, checkNoUp, checkType, checkType, checkUp, copyType, ctxValue, ebv, refineType, seqType, size, test, toArray, toArray, toAtomItem, toB64, toB64, toBin, toBin, toBoolean, toBoolean, toBytes, toBytes, toDouble, toDouble, toElem, toFloat, toFunc, toItem, toItem, toLong, toLong, toMap, toMap, toNode, toNode, toNodeOrNull, toNumber, toNumberOrNull, toQNm, toQNm, toToken, toToken, toTokenOrNull, toZeroTokenMethods inherited from class org.basex.query.expr.Expr
arg, args, atomItem, atomIter, data, data, ddo, funcType, hasFreeVars, indexAccessible, isSimple, markTailCalls, mergeEbv, simplifyFor, typeCheck, uses, vacuous, visitAllMethods inherited from class org.basex.query.expr.ExprInfo
description, toErrorString, toString
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Constructor Details
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FTExtension
Constructor.- Parameters:
info- input infopragma- pragmaexpr- enclosed FTSelection
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Method Details
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item
Description copied from class:FTExprThis method is called by the sequential full-text evaluation. It always returns an item.- Specified by:
itemin classFTExpr- Parameters:
qc- query contextii- input info (only required bySeqinstances, which have no input info)- Returns:
- resulting item
- Throws:
QueryException- query exception
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iter
Description copied from class:FTExprThis method is called by the index-based full-text evaluation.- Specified by:
iterin classFTExpr- Parameters:
qc- query context- Returns:
- resulting item
- Throws:
QueryException- query exception
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copy
Description copied from class:ExprCopies an expression. Used for inlining functions, or for copying static queries. It is utilized byVarRef.inline(org.basex.query.InlineContext),FuncItem.inline(org.basex.query.expr.Expr[], org.basex.query.CompileContext),Closure.inline(org.basex.query.InlineContext)andStaticFunc.inline(org.basex.query.expr.Expr[], org.basex.query.CompileContext).- Specified by:
copyin classFTExpr- Parameters:
cc- compilation contextvm- mapping from old variable IDs to new variable copies. Required byClosure.copy(org.basex.query.CompileContext, org.basex.util.hash.IntObjMap<org.basex.query.var.Var>)andVarRef.copy(org.basex.query.CompileContext, org.basex.util.hash.IntObjMap<org.basex.query.var.Var>)- Returns:
- copied expression
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equals
Description copied from class:ExprThis function is e.g. called by:If.optimize(CompileContext),Switch.optimize(CompileContext),Typeswitch.optimize(CompileContext), in order to discard identical expressions.CmpR.mergeEbv(Expr, boolean, CompileContext)orCmpSR.mergeEbv(Expr, boolean, CompileContext), in order to merge expressions with identical input.CmpG.optimize(CompileContext)orCmpV.optimize(CompileContext), in order to pre-evaluate equality tests.CmpG.optimize(CompileContext)orPos.get(Expr, CmpV.OpV, InputInfo, CompileContext), in order to compare the start and end value.PathCache, in order to find identical root values at runtime.
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plan
Description copied from class:ExprInfoCreates a query plan. -
plan
Description copied from class:ExprInfoCreates a query string.
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