org.melati.poem
Class ResultSetEnumeration<T>

java.lang.Object
  org.melati.poem.ResultSetEnumeration<T>

All Implemented Interfaces:

Enumeration<T>, SkipEnumeration<T>

Direct Known Subclasses:

TailoredResultSetEnumeration

public abstract class ResultSetEnumeration<T>
extends Object
implements SkipEnumeration<T>

An Enumeration created by filtering a ResultSet according to an abstract function applied to each element of the ResultSet.

Implementations must provide mapped(ResultSet).

Constructor Summary

ResultSetEnumeration(ResultSet resultSet)
Constructor.

Method Summary

boolean	hasMoreElements()
protected abstract Object	mapped(ResultSet resultSetP)
T	nextElement() Return the next element.
void	skip() Skip an Element.

Methods inherited from class java.lang.Object

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

Constructor Detail

ResultSetEnumeration

public ResultSetEnumeration(ResultSet resultSet)

Constructor.

Parameters:

resultSet - the ResultSet property

Method Detail

hasMoreElements

public boolean hasMoreElements()

Specified by:

hasMoreElements in interface Enumeration<T>

See Also:

Enumeration.hasMoreElements()

mapped

protected abstract Object mapped(ResultSet resultSetP)
                          throws SQLException,
                                 NoSuchRowPoemException

Throws:

SQLException

NoSuchRowPoemException

nextElement

public T nextElement()
              throws NoSuchElementException

Return the next element.

NOTE A RowDisappearedPoemException might be thrown but does not prevent subsequent use of the object.

Specified by:

nextElement in interface Enumeration<T>

Throws:

NoSuchElementException

See Also:

Enumeration.nextElement()

skip

public void skip()
          throws NoSuchElementException

Skip an Element.

Specified by:

skip in interface SkipEnumeration<T>

Throws:

NoSuchElementException - if there are no more Elements

See Also:

SkipEnumeration.skip()