org.geotools.data
Class JoiningAttributeReader

java.lang.Object
  org.geotools.data.JoiningAttributeReader

All Implemented Interfaces:

AttributeReader

public class JoiningAttributeReader

extends java.lang.Object

implements AttributeReader

Attribute Reader that joins.

Version:

$Id: JoiningAttributeReader.java,v 1.2 2003/11/04 00:28:50 cholmesny Exp $

Author:

Ian Schneider

Constructor Summary

JoiningAttributeReader(AttributeReader[] readers)
Creates a new instance of JoiningAttributeReader

Method Summary

void	close() Release any resources associated with this reader
int	getAttributeCount() The number of attributes this reader can read, i.e the length of a row.
AttributeType	getAttributeType(int i) Retrieve the AttributeType at the given index.
boolean	hasNext() Does another set of attributes exist in this reader?
void	next() Advance the reader to the next set of attributes.
java.lang.Object	read(int idx) Read the attribute at the given index.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JoiningAttributeReader

public JoiningAttributeReader(AttributeReader[] readers)

Creates a new instance of JoiningAttributeReader

Parameters:

readers - Readers to join

Method Detail

close

public void close()
           throws java.io.IOException

Description copied from interface: AttributeReader

Release any resources associated with this reader

Specified by:

close in interface AttributeReader

Throws:

java.io.IOException

hasNext

public boolean hasNext()
                throws java.io.IOException

Description copied from interface: AttributeReader

Does another set of attributes exist in this reader?

Specified by:

hasNext in interface AttributeReader

Returns:

true if additional content exists for AttributeReader

Throws:

java.io.IOException

next

public void next()
          throws java.io.IOException

Description copied from interface: AttributeReader

Advance the reader to the next set of attributes.

Specified by:

next in interface AttributeReader

Throws:

java.io.IOException

read

public java.lang.Object read(int idx)
                      throws java.io.IOException

Description copied from interface: AttributeReader

Read the attribute at the given index.

Specified by:

read in interface AttributeReader

Returns:

Object Attribute at given index

Throws:

java.io.IOException

getAttributeCount

public int getAttributeCount()

Description copied from interface: AttributeReader

The number of attributes this reader can read, i.e the length of a row.

Specified by:

getAttributeCount in interface AttributeReader

Returns:

Number of attribtues this reader can read

getAttributeType

public AttributeType getAttributeType(int i)

Description copied from interface: AttributeReader

Retrieve the AttributeType at the given index.

Specified by:

getAttributeType in interface AttributeReader

Returns:

AttributeType at given index