org.knime.core.data.def
Class DefaultRowIterator

java.lang.Object
  org.knime.core.data.RowIterator
      org.knime.core.data.def.DefaultRowIterator

All Implemented Interfaces:

Iterator<DataRow>

public class DefaultRowIterator
extends RowIterator

Specific implementation for a RowIterator that iterates over a generic DataTable. It delegates to a given Iterator<DataRow>; but disallows the invocation of the remove method.

Author:

Bernd Wiswedel, University Konstanz

Constructor Summary

DefaultRowIterator(DataRow... rows)
Constructs a new iterator that traverses an array of DataRow.

DefaultRowIterator(Iterable<DataRow> iterable)
Constructs a new iterator based on an Iterable.

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

DefaultRowIterator

public DefaultRowIterator(Iterable<DataRow> iterable)

Constructs a new iterator based on an Iterable.

Parameters:

iterable - the underlying iterable row container.

Throws:

NullPointerException - if the argument is null.

DefaultRowIterator

public DefaultRowIterator(DataRow... rows)

Constructs a new iterator that traverses an array of DataRow.

Parameters:

rows - the array to iterate over.

Throws:

NullPointerException - if the argument is null.

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