Package com.flowingcode.vaadin.addons.easygrid

Class EasyColumn<T,V>

java.lang.Object

com.flowingcode.vaadin.addons.easygrid.EasyColumn<T,V>

Type Parameters:

T - the grid bean type

V - the column value type

All Implemented Interfaces:

IEasyGridColumn<T,V>, Serializable

public final class EasyColumn<T,V>
extends Object
implements IEasyGridColumn<T,V>, Serializable

Wraps a Grid.Column and provides type-specific formatting for an EasyGridAddon-managed column.

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
<S> EasyColumn<T,S>	as(Class<S> type)	Returns this column cast to value type S, analogously to Class.asSubclass(java.lang.Class<U>).
EasyColumn<T,V>	setFormatter(SerializableFunction<V,String> formatter)	Sets a custom formatter that converts the column value to a display string.
EasyColumn<T,V>	setNullRepresentation(String nullRepresentation)	Sets the string to display when the column value is null.
EasyColumn<T,V>	setRendererFactory(RendererFactory<T,V> rendererFactory)	Sets a custom renderer factory for this column.
EasyColumn<T,V>	setTextAlign(ColumnTextAlign textAlign)	Sets the text alignment for this column's cells.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.flowingcode.vaadin.addons.easygrid.IEasyGridColumn

getColumn, setAutoWidth, setComparator, setComparator, setEditorComponent, setEditorComponent, setFlexGrow, setFooter, setFooter, setFooterPartName, setFrozen, setFrozenToEnd, setHeader, setHeader, setHeaderPartName, setKey, setPartNameGenerator, setResizable, setRowHeader, setSortable, setSortOrderProvider, setSortProperty, setTooltipGenerator, setVisible, setWidth

Method Details

as

public <S> EasyColumn<T,S> as(Class<S> type)

Returns this column cast to value type S, analogously to Class.asSubclass(java.lang.Class<U>). Succeeds when the column's actual value type is a subtype of S; throws otherwise.

Type Parameters:

S - the target value type

Parameters:

type - the target value type class

Returns:

this column cast to EasyColumn<T, S>

Throws:

ClassCastException - if the column's actual value type is not a subtype of type

setNullRepresentation

public EasyColumn<T,V> setNullRepresentation(String nullRepresentation)

Sets the string to display when the column value is null. Overrides any null representation inherited from the type or global configuration. Updates the underlying configuration and re-applies the renderer.

Parameters:

nullRepresentation - the string to show for null values

Returns:

this column, for fluent chaining

setFormatter

public EasyColumn<T,V> setFormatter(SerializableFunction<V,String> formatter)

Sets a custom formatter that converts the column value to a display string. Overrides any type-specific or formatter-based renderer inherited from the configuration chain.

Parameters:

formatter - a function mapping a column value to its display string

Returns:

this column, for fluent chaining

setRendererFactory

public EasyColumn<T,V> setRendererFactory(RendererFactory<T,V> rendererFactory)

Sets a custom renderer factory for this column. Overrides any type-specific or formatter-based renderer inherited from the configuration chain.

Parameters:

rendererFactory - a factory that creates a renderer from a value provider

Returns:

this column, for fluent chaining

setTextAlign

public EasyColumn<T,V> setTextAlign(ColumnTextAlign textAlign)

Sets the text alignment for this column's cells. Updates both the underlying Grid.Column and the ColumnConfiguration.

Specified by:

setTextAlign in interface IEasyGridColumn<T,V>

Parameters:

textAlign - the text alignment to apply

Returns:

this column, for fluent chaining