org.basex.query.expr
Class StringRangeAccess
java.lang.Object
org.basex.data.ExprInfo
org.basex.query.expr.Expr
org.basex.query.expr.ParseExpr
org.basex.query.expr.Simple
org.basex.query.expr.IndexAccess
org.basex.query.expr.StringRangeAccess
public final class StringRangeAccess
- extends IndexAccess
This index class retrieves ranges from a value index.
- Author:
- BaseX Team 2005-12, BSD License, Christian Gruen
Nested classes/interfaces inherited from class org.basex.query.expr.Expr |
Expr.Flag |
Methods inherited from class org.basex.query.expr.ParseExpr |
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, item, optPre, preEval, size, test, type, value |
Methods inherited from class org.basex.query.expr.Expr |
addText, compEbv, copy, hasFreeVars, indexAccessible, indexEquivalent, inlineAll, isEmpty, isFunction, isItem, isVacuous, isValue, markTailCalls, optimize, sameAs, uses, visitAll |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
StringRangeAccess
public StringRangeAccess(InputInfo ii,
StringRange t,
IndexContext ic)
- Constructor.
- Parameters:
ii
- input infot
- index referenceic
- index context
iter
public AxisIter iter(QueryContext ctx)
- Description copied from class:
Expr
- Evaluates the expression and returns an iterator on the resulting items.
If this method is not overwritten,
Expr.item(org.basex.query.QueryContext, org.basex.util.InputInfo)
must be implemented
by an expression, as it may be called by this method.
- Specified by:
iter
in class IndexAccess
- Parameters:
ctx
- query context
- Returns:
- resulting item
copy
public Expr copy(QueryContext ctx,
VarScope scp,
IntObjMap<Var> vs)
- Description copied from class:
Expr
- Copies an expression.
Will be useful for inlining functions, or for copying static queries.
- Specified by:
copy
in class Expr
- Parameters:
ctx
- query contextscp
- variable scope for creating new variablesvs
- mapping from old variable IDs to new variable copies
- Returns:
- copied expression
plan
public void plan(FElem plan)
- Description copied from class:
ExprInfo
- Creates an expression tree.
- Overrides:
plan
in class Simple
- Parameters:
plan
- root element
toString
public java.lang.String toString()
- Specified by:
toString
in class ExprInfo