Package guru.mikelue.foxglove.setting

Class LayeredDataSetting

java.lang.Object

guru.mikelue.foxglove.setting.LayeredDataSetting

All Implemented Interfaces:

DataSettingInfo

public class LayeredDataSetting
extends Object
implements DataSettingInfo

A proxy of DataSettingInfo for multi-layer settings. The default setting of global is always added as the last priority.

Constructor Summary

Constructors

Constructor	Description
LayeredDataSetting(DataSettingInfo... settings)	Constructs the layered data setting with multiple settings.

Method Summary

Modifier and Type	Method	Description
int	getDefaultNumberOfRows()	Uses the highest priority setting to get the default number of rows.
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)	Retrieves the found Supplier by priority of settings.

Methods inherited from class java.lang.Object

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

Constructor Details

LayeredDataSetting

public LayeredDataSetting(DataSettingInfo... settings)

Constructs the layered data setting with multiple settings. The usage priority is from first to last.

Parameters:

settings - The rest data setting info, can be null for some

Method Details

getDefaultNumberOfRows

public int getDefaultNumberOfRows()

Uses the highest priority setting to get the default number of rows.

Specified by:

getDefaultNumberOfRows in interface DataSettingInfo

Returns:

The number of rows defined in the highest priority setting

See Also:

• DataSetting.defaults()

resolveSupplier

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

Retrieves the found Supplier by priority of settings.

Specified by:

resolveSupplier in interface DataSettingInfo

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

public 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

Specified by:

isAutoGenerating in interface DataSettingInfo

Parameters:

column - The metadata of a column

Returns:

Whether or not to generate value automatically