Input Table

Input Tables are in-memory Deephaven tables that allow users to manually edit the data in cells. They come in two flavors:

AppendOnlyArrayBackedInputTable - An append-only table allows users to add rows to the end of the table and does not support edits or deletions.
KeyedArrayBackedInputTable - A keyed table has keys for each row, allowing modification of pre-existing values.

Syntax

Append-Only

AppendOnlyArrayBackedInputTable.make(definition)
AppendOnlyArrayBackedInputTable.make(initialTable)

Keyed

KeyedArrayBackedInputTable.make(definition, keyColumnNames...)
KeyedArrayBackedInputTable.make(initialTable, keyColumnNames...)

Parameters

Parameter	Type	Description
definition	TableDefinition	The definition of the new table.
initialTable	Table	The initial `Table` to copy into the append-only or keyed Input Table.
keyColumnNames	String...	The names of the key columns. Keyed Input Tables only.

Returns

An append-only or keyed Input Table.

Examples

In this example, we will create an append-only input table from a source table.

import io.deephaven.engine.table.impl.util.AppendOnlyArrayBackedInputTable

source = newTable(
    doubleCol("Doubles", 3.1, 5.45, -1.0),
    stringCol("Strings", "Creating", "New", "Tables")
)

result = AppendOnlyArrayBackedInputTable.make(source)

In this example, we will create a keyed input table from a source table.

import io.deephaven.engine.table.impl.util.KeyedArrayBackedInputTable

source = newTable(
    doubleCol("Doubles", 3.1, 5.45, -1.0),
    stringCol("Strings", "Creating", "New", "Tables")
)

result = KeyedArrayBackedInputTable.make(source, "Strings")

Add data to the table

To manually add data to an input table, click the cell in which you wish to enter data, type the value, and press Enter.

A user manually adds data to an input table

Important

Added rows are not final until you hit the Commit button.