Package com.storedobject.ui.util

Class SOColumnCreator<T>

java.lang.Object

com.storedobject.ui.util.SOColumnCreator<T>

All Implemented Interfaces:

ObjectColumnCreator<T>

public class SOColumnCreator<T>
extends Object
implements ObjectColumnCreator<T>

Constructor Summary

Constructors

Constructor	Description
SOColumnCreator()

Method Summary

Modifier and Type	Method	Description
void	close()	This will be invoked when the process of "column creation" is over.
ObjectColumnCreator<T>	create(HasColumns<T> grid)	Create a "column creator" for the given grid.
Function<T,?>	getColumnFunction(String columnName)	Get the function that is used to generate the content of a particular column.
Stream<String>	getColumnNames()	Get the column names for the grid.
com.vaadin.flow.component.grid.ColumnTextAlign	getColumnTextAlign(String columnName, Class<?> valueType)	Get the text alignment of a particular column.
Class<?>	getColumnValueType(String columnName)	Get the value type of particular column.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.storedobject.vaadin.ObjectColumnCreator

getColumnCaption, getColumnMethod, getColumnOrder

Constructor Details

SOColumnCreator

public SOColumnCreator()

Method Details

create

public ObjectColumnCreator<T> create(HasColumns<T> grid)

Description copied from interface: ObjectColumnCreator

Create a "column creator" for the given grid.

Specified by:

create in interface ObjectColumnCreator<T>

Parameters:

grid - The grid for which columns need to be created.

Returns:

Column creator. The default implementation return the self reference.

getColumnNames

public Stream<String> getColumnNames()

Description copied from interface: ObjectColumnCreator

Get the column names for the grid.

Specified by:

getColumnNames in interface ObjectColumnCreator<T>

Returns:

Stream of column names.

getColumnFunction

public Function<T,?> getColumnFunction(String columnName)

Description copied from interface: ObjectColumnCreator

Get the function that is used to generate the content of a particular column.

Specified by:

getColumnFunction in interface ObjectColumnCreator<T>

Parameters:

columnName - Name of the column

Returns:

Function. Default implementation returns null.

getColumnTextAlign

public com.vaadin.flow.component.grid.ColumnTextAlign getColumnTextAlign(String columnName,
 Class<?> valueType)

Description copied from interface: ObjectColumnCreator

Get the text alignment of a particular column.

Specified by:

getColumnTextAlign in interface ObjectColumnCreator<T>

Parameters:

columnName - Name of the column

valueType - Value type of the column (If the value tye can not be determined, it will be null)

Returns:

Text alignment. Default implementation returns START if the value type is null or non-numeric.

getColumnValueType

public Class<?> getColumnValueType(String columnName)

Description copied from interface: ObjectColumnCreator

Get the value type of particular column.

Specified by:

getColumnValueType in interface ObjectColumnCreator<T>

Parameters:

columnName - Name of the column

Returns:

Value type. The default implementation returns null.

close

public void close()

Description copied from interface: ObjectColumnCreator

This will be invoked when the process of "column creation" is over. Default implementation does nothing.

Specified by:

close in interface ObjectColumnCreator<T>