com.github.martincooper.datatable

Interface IDataColumn

All Superinterfaces:

IModifiable<Integer,Object,IDataColumn>, IModifiableByIndex<Object,IDataColumn>

All Known Implementing Classes:

DataColumn

public interface IDataColumn
extends IModifiableByIndex<Object,IDataColumn>

Generic interface for the DataColumn class. Allows columns that can store different data types to be stored in a generic collection without losing type specific information. Created by Martin Cooper on 13/07/2017.

Method Summary

Modifier and Type	Method and Description
<V> io.vavr.control.Try<DataColumn<V>>	asType(Class<V> type) Returns the generic data column as it's typed implementation.
io.vavr.control.Try<IDataColumn>	buildFromRows(io.vavr.collection.Seq<Integer> rowIndexes) Builds a new DataColumn from the data in the specified row indexes.
io.vavr.collection.Vector	data() The underlying data.
boolean	IsComparable() Checks if the data column supports comparable for sorting.
String	name() The column name.
Type	type() The data type of the column.
Object	valueAt(Integer rowIndex) Returns the value at the specified index.

Methods inherited from interface com.github.martincooper.datatable.IModifiable

add, insert, remove, replace

Method Detail

name

String name()

The column name.

Returns:

Returns the column name.

type

Type type()

The data type of the column.

Returns:

Returns the column type.

data

io.vavr.collection.Vector data()

The underlying data.

Returns:

Returns access to the underlying data.

valueAt

Object valueAt(Integer rowIndex)

Returns the value at the specified index.

Parameters:

rowIndex - The row index.

Returns:

Returns the value.

asType

<V> io.vavr.control.Try<DataColumn<V>> asType(Class<V> type)

Returns the generic data column as it's typed implementation. If the types don't match, then it'll return Failure.

Type Parameters:

V - The type.

Parameters:

type - The type of the column.

Returns:

Returns the typed Data Column wrapped in a Try.

IsComparable

boolean IsComparable()

Checks if the data column supports comparable for sorting.

Returns:

Returns true if the column type supports Comparable.

buildFromRows

io.vavr.control.Try<IDataColumn> buildFromRows(io.vavr.collection.Seq<Integer> rowIndexes)

Builds a new DataColumn from the data in the specified row indexes.

Parameters:

rowIndexes - The rows which the new column data is to be built from.

Returns:

Returns a new IDataColumn with just the rows specified.