org.whaka.data

Class ColumnsBuilder

java.lang.Object

org.whaka.data.ColumnsBuilder

public final class ColumnsBuilder
extends java.lang.Object

Class provides mutable usability functionality to build Columns instance.

See Also:

addColumn(Column), addColumn(Column, int), addColumn(ColumnKey, Collection), addColumn(ColumnKey, Object...), removeColumn(ColumnKey), build()

Constructor Summary

Constructors

Constructor and Description
ColumnsBuilder()

Method Summary

Modifier and Type	Method and Description
ColumnsBuilder	addColumn(Column<?> column) Equal to the addColumn(Column, int) with current number of columns specified as index, so new column will be added at the end of the list.
ColumnsBuilder	addColumn(Column<?> column, int idx) Add specified column at the specified in the list.
<T> ColumnsBuilder	addColumn(ColumnKey<T> key, java.util.Collection<T> data) Equal to the addColumn(Column) with a new Column instance being created using specified key and data.
<T> ColumnsBuilder	addColumn(ColumnKey<T> key, T... data) Equal to the addColumn(ColumnKey, Collection) with the specified data wrapped into Arrays.asList(Object...)
Columns	build() Builder new Columns instance, using result of the getColumns() method as input data.
<T> Column<T>	getColumn(ColumnKey<T> key) Returns a column with the same key as specified, or null.
java.util.List<Column<?>>	getColumns()
boolean	isPresent(ColumnKey<?> key)
<T> Column<T>	removeColumn(ColumnKey<T> key) Removes column with the specified key from the list.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnsBuilder

public ColumnsBuilder()

Method Detail

isPresent

public boolean isPresent(ColumnKey<?> key)

getColumn

public <T> Column<T> getColumn(ColumnKey<T> key)

Returns a column with the same key as specified, or null.

getColumns

public java.util.List<Column<?>> getColumns()

addColumn

public <T> ColumnsBuilder addColumn(ColumnKey<T> key,
                                    T... data)

Equal to the addColumn(ColumnKey, Collection) with the specified data wrapped into Arrays.asList(Object...)

addColumn

public <T> ColumnsBuilder addColumn(ColumnKey<T> key,
                                    java.util.Collection<T> data)

Equal to the addColumn(Column) with a new Column instance being created using specified key and data.

addColumn

public ColumnsBuilder addColumn(Column<?> column)

Equal to the addColumn(Column, int) with current number of columns specified as index, so new column will be added at the end of the list.

addColumn

public ColumnsBuilder addColumn(Column<?> column,
                                int idx)

Add specified column at the specified in the list. Index works the same way as in the List.add(int, Object).

Throws:

java.lang.IllegalArgumentException - if isPresent(ColumnKey) returns true for the key of the specified column.

removeColumn

public <T> Column<T> removeColumn(ColumnKey<T> key)

Removes column with the specified key from the list. Returns removed column or null if there was no such column.

build

public Columns build()

Builder new Columns instance, using result of the getColumns() method as input data.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object