io.micronaut.context.annotation

Annotation Type ConfigurationBuilder

@Documented
 @Retention(value=RUNTIME)
 @Target(value={FIELD,METHOD})
public @interface ConfigurationBuilder

An annotation applicable to a field or method of a ConfigurationProperties instance that allows to customize the behaviour of properties that are builders themselves.

Since:

1.0

Author:

Graeme Rocher

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
boolean	allowZeroArgs Some APIs allow zero argument setters to set boolean flags such as setDebug().
String[]	children
String	configurationPrefix When this annotation is used, by default the name of the field or method is not taken into account when retrieving configuration properties.
String[]	excludes
String	factoryMethod Only to be used if the builder is not being created manually.
String[]	includes
String[]	prefixes The default is for ConfigurationBuilder to look for public JavaBean-style setters.
String	value

Element Detail

value

public abstract String value

Returns:

The configuration prefix

See Also:

configurationPrefix()

Default:

""

prefixes

public abstract String[] prefixes

The default is for ConfigurationBuilder to look for public JavaBean-style setters. Many APIs however use a builder-style or other style to for constructing configuration.

This method allows overriding this behaviour. For example if the builder you are authoring for prefixes write operations with the word "with" by setting the value of this attribute to "with" you can process methods such as withDebug(true)

Returns:

The write prefix to use

Default:

"set"

configurationPrefix

@AliasFor(member="value")
public abstract String configurationPrefix

When this annotation is used, by default the name of the field or method is not taken into account when retrieving configuration properties.

This method allows overriding this behaviour. For example if the annotation is placed on a field, you can change the prefix for which configuration values will be searched to populate the field.

Returns:

The configuration prefix to use

Default:

""

allowZeroArgs

public abstract boolean allowZeroArgs

Some APIs allow zero argument setters to set boolean flags such as setDebug(). These by default are not processed unless the value of this annotation is set to true.

Note that this attribute works in conjunction with prefixes() to allow other styles such as withDebug()

Returns:

True if zero arg setters should be processed

Default:

false

factoryMethod

public abstract String factoryMethod

Only to be used if the builder is not being created manually.

Returns:

The name of a static factory method used to create the builder

Default:

""

children

public abstract String[] children

Returns:

The names of the properties that are child builders

Default:

{}

includes

public abstract String[] includes

Returns:

The names of the properties to include

Default:

{}

excludes

public abstract String[] excludes

Returns:

The names of the properties to exclude

Default:

{}