Interface ConfigBuilderInterfaces.SingleTableDataColumnStep3

All Superinterfaces:

ConfigBuilderInterfaces.SingleTableAddColumnOrExit, ConfigBuilderInterfaces.SingleTableDataColumnStep4

All Known Subinterfaces:

ConfigBuilderInterfaces.SingleTableDataColumnStep2

Enclosing class:

ConfigBuilderInterfaces

public static interface ConfigBuilderInterfaces.SingleTableDataColumnStep3
extends ConfigBuilderInterfaces.SingleTableDataColumnStep4

Fluent API to build a SingleTableConfig

Follow the method chain to finally obtain the result with ConfigBuilderInterfaces.SingleTableAddColumnOrExit.get().

Author:

Karl Eilebrecht

Method Summary

Modifier and Type	Method	Description
ConfigBuilderInterfaces.SingleTableDataColumnStep4	multiRow()	Defines that the data for a single record can be spread across multiple rows.

Methods inherited from interface ConfigBuilderInterfaces.SingleTableAddColumnOrExit

dataColumn, get

Methods inherited from interface ConfigBuilderInterfaces.SingleTableDataColumnStep4

filteredBy

Method Details

multiRow

ConfigBuilderInterfaces.SingleTableDataColumnStep4 multiRow()

Defines that the data for a single record can be spread across multiple rows.

This property must be set if the same column is mapped to multiple attributes (with filter column(s), see example below) or if this is a collection attribute and you want to allow AND for two conditions of the same attribute (e.g., color=blue AND color=red.

Example:

  +------+------------+-------------+
  | ID   | ENTRY_TYPE | ENTRY_VALUE |
  +------+------------+-------------+
  | 8599 | MODEL      | X4886       |
  +------+------------+-------------+
  | 8599 | BRAND      | QUACK       |
  +------+------------+-------------+
  | 8599 | COLOR      | BLACK       |
  +------+------------+-------------+
  | ...  | ...        | ...         |

Let's say we want to query model=X4886 AND brand=QUACK.

Obviously, from the table above you cannot query ... WHERE ENTRY_TYPE='MODEL' AND ENTRY_VALUE='X4886' AND ENTRY_TYPE='BRAND' AND ENTRY_VALUE='QUACK'

The problem is that the first condition would fix the row, so the second condition will never become true (accidental row-pinning).

With the multi-row you tell the query builder about this problem and enforce a different query style.

Returns:

builder

See Also:

• DataColumn