com.bea.wlw.netui.tags.databinding.grid.datacontext
Class DataContext

java.lang.Object
  com.bea.wlw.netui.tags.databinding.grid.datacontext.DataContext

Direct Known Subclasses:

EmptyDataContext, RowSetDataContext

public abstract class DataContext
extends Object

Nested Class Summary

static class	DataContext.DataContextItemMetadata
static class	DataContext.RowIdentifierItem

Field Summary

protected static String

EMPTY_STRING

Constructor Summary

DataContext()

Method Summary

abstract int	getColumnCount()
abstract String	getColumnName(int index)
abstract int	getColumnType(int index)
abstract int	getColumnType(String name)
abstract Object	getColumnValue(int index)
abstract Object	getColumnValue(String name)
abstract int	getCurrentIndex()
abstract Object	getCurrentItem()
abstract DataContext.DataContextItemMetadata	getCurrentMetadata()
abstract boolean	hasNext()
abstract Object	next()
abstract void	setIterationRange(int start, int end)
abstract int	size()
abstract Object	unwrap()

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_STRING

protected static final String EMPTY_STRING

See Also:

Constant Field Values

Constructor Detail

DataContext

public DataContext()

Method Detail

getColumnType

public abstract int getColumnType(int index)

getColumnType

public abstract int getColumnType(String name)

getColumnName

public abstract String getColumnName(int index)

getColumnValue

public abstract Object getColumnValue(int index)

Throws:

NoSuchDataException - throws a NoSuchDataException when the data at the given position does not exist

getColumnValue

public abstract Object getColumnValue(String name)

Throws:

NoSuchDataException - throws a NoSuchDataException when the data at the requested name does not exist

getCurrentItem

public abstract Object getCurrentItem()

getCurrentIndex

public abstract int getCurrentIndex()

getColumnCount

public abstract int getColumnCount()

next

public abstract Object next()

hasNext

public abstract boolean hasNext()

unwrap

public abstract Object unwrap()

size

public abstract int size()

setIterationRange

public abstract void setIterationRange(int start,
                                       int end)

Throws:

IllegalArgumentException - when the start or end are clearly illegal.

getCurrentMetadata

public abstract DataContext.DataContextItemMetadata getCurrentMetadata()