org.springframework.boot.autoconfigure

Class BackgroundPreinitializer

java.lang.Object

org.springframework.boot.autoconfigure.BackgroundPreinitializer

All Implemented Interfaces:

java.util.EventListener, org.springframework.context.ApplicationListener<org.springframework.boot.context.event.SpringApplicationEvent>

@Order(value=-2147483627)
public class BackgroundPreinitializer
extends java.lang.Object
implements org.springframework.context.ApplicationListener<org.springframework.boot.context.event.SpringApplicationEvent>

ApplicationListener to trigger early initialization in a background thread of time-consuming tasks.

Set the IGNORE_BACKGROUNDPREINITIALIZER_PROPERTY_NAME system property to true to disable this mechanism and let such initialization happen in the foreground.

Since:

1.3.0

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	IGNORE_BACKGROUNDPREINITIALIZER_PROPERTY_NAME System property that instructs Spring Boot how to run pre initialization.

Constructor Summary

Constructors

Constructor and Description
BackgroundPreinitializer()

Method Summary

Modifier and Type	Method and Description
void	onApplicationEvent(org.springframework.boot.context.event.SpringApplicationEvent event)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.context.ApplicationListener

forPayload

Field Detail

IGNORE_BACKGROUNDPREINITIALIZER_PROPERTY_NAME

public static final java.lang.String IGNORE_BACKGROUNDPREINITIALIZER_PROPERTY_NAME

System property that instructs Spring Boot how to run pre initialization. When the property is set to true, no pre-initialization happens and each item is initialized in the foreground as it needs to. When the property is false (default), pre initialization runs in a separate thread in the background.

Since:

2.1.0

See Also:

Constant Field Values

Constructor Detail

BackgroundPreinitializer

public BackgroundPreinitializer()

Method Detail

onApplicationEvent

public void onApplicationEvent(org.springframework.boot.context.event.SpringApplicationEvent event)

Specified by:

onApplicationEvent in interface org.springframework.context.ApplicationListener<org.springframework.boot.context.event.SpringApplicationEvent>