org.settings4j

Class ConnectorPositions

java.lang.Object

org.settings4j.ConnectorPositions

public final class ConnectorPositions
extends Object

ConnectorPostitions used for Settings4jInstance.addConnector(Connector, ConnectorPosition).

Exampe Usage:

 --------------------------------------
 Connector myConnector = ...
 if (Settings4j.getSettings().getConnector(myConnector.getName()) == null) {
   Settings4j.getSettings().addConnector(myConnector, ConnectorPositions.firstValid(//
       ConnectorPositions.afterLast(SystemPropertyConnector.class),
       ConnectorPositions.atFirst() // fallback if no SystemPropertyConnector exists.
     )
   );
 }
 --------------------------------------
 

It is even more readable with static import:

 --------------------------------------
 import static org.settings4j.ConnectorPositions.*;
 ..
 Connector myConnector = ...
 if (Settings4j.getSettings().getConnector(myConnector.getName()) == null) {
   Settings4j.getSettings().addConnector(myConnector, //
      firstValid(afterLast(SystemPropertyConnector.class), atFirst())
   );
 }
 --------------------------------------
 

Author:

brabenetz

Method Summary

Methods

Modifier and Type	Method and Description
static ConnectorPosition	after(String connectorName)
static ConnectorPosition	afterFirst(Class<? extends Connector> connectorClass)
static ConnectorPosition	afterLast(Class<? extends Connector> connectorClass)
static ConnectorPosition	atFirst()
static ConnectorPosition	atLast()
static ConnectorPosition	before(String connectorName)
static ConnectorPosition	beforeFirst(Class<? extends Connector> connectorClass)
static ConnectorPosition	beforeLast(Class<? extends Connector> connectorClass)
static ConnectorPosition	firstValid(ConnectorPosition... connectorPosition)

Methods inherited from class java.lang.Object

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

Method Detail

before

public static ConnectorPosition before(String connectorName)

Parameters:

connectorName - The Connector.getName() to search for.

Returns:

ConnectorPositionBeforeName

beforeFirst

public static ConnectorPosition beforeFirst(Class<? extends Connector> connectorClass)

Parameters:

connectorClass - the connector class to search in the given connectors list.

Returns:

ConnectorPositionBeforeFirstClass

beforeLast

public static ConnectorPosition beforeLast(Class<? extends Connector> connectorClass)

Parameters:

connectorClass - the connector class to search in the given connectors list.

Returns:

ConnectorPositionBeforeLastClass

after

public static ConnectorPosition after(String connectorName)

Parameters:

connectorName - The Connector.getName() to search for.

Returns:

ConnectorPositionAfterName

afterFirst

public static ConnectorPosition afterFirst(Class<? extends Connector> connectorClass)

Parameters:

connectorClass - the connector class to search in the given connectors list.

Returns:

ConnectorPositionAfterFirstClass

afterLast

public static ConnectorPosition afterLast(Class<? extends Connector> connectorClass)

Parameters:

connectorClass - the connector class to search in the given connectors list.

Returns:

ConnectorPositionAfterLastClass

atFirst

public static ConnectorPosition atFirst()

Returns:

ConnectorPositionAtFirst which always returns an valid position.

atLast

public static ConnectorPosition atLast()

Returns:

ConnectorPositionAtLast which always returns an valid position.

firstValid

public static ConnectorPosition firstValid(ConnectorPosition... connectorPosition)

Parameters:

connectorPosition - the ConnectorPositions to search for a valid position.

Returns:

ConnectorPositionFirstValid