io.micronaut.context.env

Interface PropertyPlaceholderResolver

All Known Subinterfaces:

ApplicationContext

All Known Implementing Classes:

DefaultApplicationContext, DefaultPropertyPlaceholderResolver

public interface PropertyPlaceholderResolver

Interface for implementations that resolve placeholders in configuration and annotations.

Since:

1.0

Author:

Graeme Rocher

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	PropertyPlaceholderResolver.Placeholder A place holder definition.

Method Summary

Modifier and Type	Method and Description
default String	getPrefix()
Optional<String>	resolvePlaceholders(String str) Resolve the placeholders and return an Optional String if it was possible to resolve them.
default List<PropertyPlaceholderResolver.Placeholder>	resolvePropertyNames(String str) Resolves all the property names defined in the given place holder string.
default String	resolveRequiredPlaceholders(String str) Resolve the placeholders and return an Optional String if it was possible to resolve them.

Method Detail

resolvePlaceholders

Optional<String> resolvePlaceholders(String str)

Resolve the placeholders and return an Optional String if it was possible to resolve them.

Parameters:

str - The placeholder to resolve

Returns:

The optional string or Optional.empty() if resolution was not possible

getPrefix

default String getPrefix()

Returns:

The prefix used

resolveRequiredPlaceholders

default String resolveRequiredPlaceholders(String str)
                                    throws ConfigurationException

Resolve the placeholders and return an Optional String if it was possible to resolve them.

Parameters:

str - The placeholder to resolve

Returns:

The optional string or Optional.empty() if resolution was not possible

Throws:

ConfigurationException - If the placeholders could not be resolved

resolvePropertyNames

default List<PropertyPlaceholderResolver.Placeholder> resolvePropertyNames(String str)

Resolves all the property names defined in the given place holder string.

Parameters:

str - The string

Returns:

a list of property names