Package guru.mikelue.foxglove.setting

Interface DataSettingInfo

All Known Implementing Classes:

DataSetting, LayeredDataSetting

public interface DataSettingInfo

This interface defines the methods used by engine of data generating.

Method Summary

Modifier and Type	Method	Description
int	getDefaultNumberOfRows()	Gets the default number of rows for generated data.
boolean	isAutoGenerating(ColumnMeta column)	Gets whether or not to generate value automatically by the given properties of a column.
<T> Optional<Supplier<T>>	resolveSupplier(ColumnMeta columnMeta)	Resolves the Supplier for the given column metadata.

Method Details

getDefaultNumberOfRows

int getDefaultNumberOfRows()

Gets the default number of rows for generated data.

This number of rows is used when:

• No specific number of rows is defined by TableFacet

The default value is 1024.

Returns:

The default number of rows for generated data

resolveSupplier

<T> Optional<Supplier<T>> resolveSupplier(ColumnMeta columnMeta)

Resolves the Supplier for the given column metadata. The priority of resolution is:

1. Column matcher configured by DataSetting.columnMatcher(ColumnMatcher)
2. Type name configured by DataSetting.givenType(String)
3. JDBC type configured by DataSetting.givenType(JDBCType)

Type Parameters:

T - The type of value supplied by the resolved Supplier

Parameters:

columnMeta - The metadata of column used to resolve Supplier

Returns:

The resolved Supplier or empty

isAutoGenerating

boolean isAutoGenerating(ColumnMeta column)

Gets whether or not to generate value automatically by the given properties of a column. Additionally, the DataSetting.excludeWhen(ColumnMatcher) also affects this behavior.

The default properties to generate value automatically:

• ColumnMeta.Property.NULLABLE
• ColumnMeta.Property.DEFAULT_VALUE

The conditions used by this method will gives true for a column:

1. Not-excluded by DataSetting.excludeWhen(ColumnMatcher)
2. Matches any customized matching by DataSetting.columnMatcher(ColumnMatcher)
3. Not-excluded by ColumnMeta.properties()
4. Matches type by DataSetting.givenType(String)
5. Matches type by DataSetting.givenType(JDBCType)
6. Not-excluded by not supported JDBCTypes

Parameters:

column - The metadata of a column

Returns:

Whether or not to generate value automatically