org.basex.query.xquery.expr
Class FTSelect

java.lang.Object
  org.basex.query.ExprInfo
      org.basex.query.xquery.expr.Expr
          org.basex.query.xquery.expr.FTExpr
              org.basex.query.xquery.expr.FTSelect

public final class FTSelect
extends FTExpr

FTSelect expression.

Author:

Workgroup DBIS, University of Konstanz 2005-08, ISC License, Christian Gruen

Nested Class Summary

Nested classes/interfaces inherited from class org.basex.query.xquery.expr.Expr

Expr.Return, Expr.Using

Field Summary

Expr[]	dist Distance occurrences.
FTPos	pos Position filter.
Expr	weight Weight.
Expr	window Window.

Fields inherited from class org.basex.query.xquery.expr.FTExpr

expr

Constructor Summary

FTSelect(FTExpr e, FTPos u)
Constructor.

Method Summary

FTExpr	comp(XQContext ctx) Optimizes and compiles the expression.
Iter	iter(XQContext ctx) Evaluates the expression and returns an iterator on the resulting items.
void	plan(Serializer ser) Recursively sends the abstract syntax of this expression to the specified serializer.
java.lang.String	toString()

Methods inherited from class org.basex.query.xquery.expr.FTExpr

uses

Methods inherited from class org.basex.query.xquery.expr.Expr

e, i, returned

Methods inherited from class org.basex.query.ExprInfo

color, info, name

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

pos

public FTPos pos

Position filter.

window

public Expr window

Window.

dist

public Expr[] dist

Distance occurrences.

weight

public Expr weight

Weight.

Constructor Detail

FTSelect

public FTSelect(FTExpr e,
                FTPos u)

Constructor.

Parameters:

e - expression

u - fulltext selections

Method Detail

iter

public Iter iter(XQContext ctx)
          throws XQException

Description copied from class: Expr

Evaluates the expression and returns an iterator on the resulting items.

Specified by:

iter in class Expr

Parameters:

ctx - query context

Returns:

resulting item

Throws:

XQException - evaluation exception

comp

public FTExpr comp(XQContext ctx)
            throws XQException

Description copied from class: Expr

Optimizes and compiles the expression.

Overrides:

comp in class FTExpr

Parameters:

ctx - query context

Returns:

optimized Expression

Throws:

XQException - evaluation exception

plan

public void plan(Serializer ser)
          throws java.io.IOException

Description copied from class: ExprInfo

Recursively sends the abstract syntax of this expression to the specified serializer.

Overrides:

plan in class FTExpr

Parameters:

ser - serializer

Throws:

java.io.IOException - exception

toString

public java.lang.String toString()

Specified by:

toString in class ExprInfo