org.basex.query.func
Class FunJava

java.lang.Object
  org.basex.query.ExprInfo
      org.basex.query.expr.Expr
          org.basex.query.expr.Arr
              org.basex.query.func.FunJava

public final class FunJava
extends Arr

Java function definition.

Author:

Workgroup DBIS, University of Konstanz 2005-09, ISC License, Christian Gruen

Field Summary

Fields inherited from class org.basex.query.expr.Arr

expr

Constructor Summary

FunJava(java.lang.Class<?> c, java.lang.String m, Expr[] a)
Constructor.

Method Summary

java.lang.String	info() Returns a string description of the expression.
Iter	iter(QueryContext 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()
static Type	type(java.lang.Class<?> par) Returns an appropriate XQuery data type for the specified Java class.
static Type	type(java.lang.Object o) Returns an appropriate XQuery data type for the specified Java object.

Methods inherited from class org.basex.query.expr.Arr

comp, duplicates, indexEquivalent, removable, remove, uses

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

addText, atomic, checkCtx, checkDbl, checkItr, e, ebv, i, indexAccessible, returned, sameAs, size, test

Methods inherited from class org.basex.query.ExprInfo

color, name

Methods inherited from class java.lang.Object

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

Constructor Detail

FunJava

public FunJava(java.lang.Class<?> c,
               java.lang.String m,
               Expr[] a)

Constructor.

Parameters:

c - Java class

m - Java method/field

a - arguments

Method Detail

iter

public Iter iter(QueryContext ctx)
          throws QueryException

Description copied from class: Expr

Evaluates the expression and returns an iterator on the resulting items. If this method is not overwritten, Expr.atomic(org.basex.query.QueryContext) must be implemented.

Overrides:

iter in class Expr

Parameters:

ctx - query context

Returns:

resulting item

Throws:

QueryException - evaluation exception

type

public static Type type(java.lang.Class<?> par)

Returns an appropriate XQuery data type for the specified Java class.

Parameters:

par - Java type

Returns:

xquery type

type

public static Type type(java.lang.Object o)

Returns an appropriate XQuery data type for the specified Java object.

Parameters:

o - object

Returns:

xquery type

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 Arr

Parameters:

ser - serializer

Throws:

java.io.IOException - exception

info

public java.lang.String info()

Description copied from class: ExprInfo

Returns a string description of the expression. Contrary to the ExprInfo.toString() method, the current expressions aren't included in the output.

Overrides:

info in class ExprInfo

Returns:

result of check

toString

public java.lang.String toString()

Specified by:

toString in class ExprInfo