org.basex.query.ft
Class FTScope
java.lang.Object
org.basex.query.ExprInfo
org.basex.query.expr.Expr
org.basex.query.ft.FTExpr
org.basex.query.ft.FTScope
public final class FTScope
- extends FTExpr
FTScope expression.
- Author:
- Workgroup DBIS, University of Konstanz 2005-10, ISC License, Christian Gruen
Nested classes/interfaces inherited from class org.basex.query.expr.Expr |
Expr.Use |
Fields inherited from class org.basex.query.ft.FTExpr |
expr |
Methods inherited from class org.basex.query.expr.Expr |
addText, checkCtx, checkDbl, checkItr, duplicates, e, ebv, i, sameAs, size, test, v |
FTScope
public FTScope(FTExpr e,
Tokenizer.FTUnit u,
boolean s)
- Constructor.
- Parameters:
e
- expressionu
- units
- same flag
plan
public void plan(Serializer ser)
throws IOException
- Description copied from class:
ExprInfo
- Recursively sends the abstract syntax of this expression to the
specified serializer.
- Parameters:
ser
- serializer
- Throws:
IOException
- I/O exception
toString
public String toString()
atomic
public FTItem atomic(QueryContext ctx)
throws QueryException
- Description copied from class:
FTExpr
- This method is called by the sequential full-text evaluation.
- Specified by:
atomic
in class FTExpr
- Parameters:
ctx
- query context
- Returns:
- resulting item
- Throws:
QueryException
- query exception
iter
public FTIter iter(QueryContext ctx)
throws QueryException
- Description copied from class:
FTExpr
- This method is called by the index-based full-text evaluation.
- Specified by:
iter
in class FTExpr
- Parameters:
ctx
- query context
- Returns:
- resulting item
- Throws:
QueryException
- query exception
indexAccessible
public boolean indexAccessible(IndexContext ic)
throws QueryException
- Description copied from class:
Expr
- Checks if an index can be used for query evaluation.
- Overrides:
indexAccessible
in class Expr
- Parameters:
ic
- index context
- Returns:
- true if an index can be used
- Throws:
QueryException
- query exception