org.knime.base.node.io.arffreader
Class ARFFRowIterator

java.lang.Object
  extended by org.knime.core.data.RowIterator
      extended by org.knime.base.node.io.arffreader.ARFFRowIterator
All Implemented Interfaces:
Iterator<DataRow>

public class ARFFRowIterator
extends RowIterator

Author:
Peter Ohl, University of Konstanz

Constructor Summary
ARFFRowIterator(URL fileLocation, DataTableSpec tSpec, String rowKeyPrefix)
          Create a new row iterator reading the rows from an ARFF file at the specified location.
 
Method Summary
 boolean hasNext()
          Returns true if there are more rows and false otherwise.
 DataRow next()
          Returns the next DataRow.
 
Methods inherited from class org.knime.core.data.RowIterator
remove
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ARFFRowIterator

public ARFFRowIterator(URL fileLocation,
                       DataTableSpec tSpec,
                       String rowKeyPrefix)
                throws IOException
Create a new row iterator reading the rows from an ARFF file at the specified location.

Parameters:
fileLocation - valid URL of the file to read
tSpec - the structure of the table to create
rowKeyPrefix - row keys are constructed like rowKeyPrefix + lineNo
Throws:
IOException - if the ARFF file location couldn't be opened
Method Detail

hasNext

public boolean hasNext()
Returns true if there are more rows and false otherwise.

Specified by:
hasNext in interface Iterator<DataRow>
Specified by:
hasNext in class RowIterator
Returns:
true if the iterator has more elements, otherwise false
See Also:
RowIterator.next()

next

public DataRow next()
Returns the next DataRow.

Specified by:
next in interface Iterator<DataRow>
Specified by:
next in class RowIterator
Returns:
the next row in the DataTable


Copyright, 2003 - 2010. All rights reserved.
University of Konstanz, Germany.
Chair for Bioinformatics and Information Mining, Prof. Dr. Michael R. Berthold.
You may not modify, publish, transmit, transfer or sell, reproduce, create derivative works from, distribute, perform, display, or in any way exploit any of the content, in whole or in part, except as otherwise expressly permitted in writing by the copyright owner or as specified in the license file distributed with this product.