public interface PropertyResolver
Environment,
PropertySourcesPropertyResolver| Modifier and Type | Method and Description |
|---|---|
boolean |
containsProperty(String key)
Return whether the given property key is available for resolution,
i.e.
|
String |
getProperty(String key)
Return the property value associated with the given key,
or
null if the key cannot be resolved. |
<T> T |
getProperty(String key,
Class<T> targetType)
Return the property value associated with the given key,
or
null if the key cannot be resolved. |
<T> T |
getProperty(String key,
Class<T> targetType,
T defaultValue)
Return the property value associated with the given key,
or
defaultValue if the key cannot be resolved. |
String |
getProperty(String key,
String defaultValue)
Return the property value associated with the given key, or
defaultValue if the key cannot be resolved. |
<T> Class<T> |
getPropertyAsClass(String key,
Class<T> targetType)
Deprecated.
as of 4.3, in favor of
getProperty(java.lang.String) with manual conversion
to Class via the application's ClassLoader |
String |
getRequiredProperty(String key)
Return the property value associated with the given key (never
null). |
<T> T |
getRequiredProperty(String key,
Class<T> targetType)
Return the property value associated with the given key, converted to the given
targetType (never
null). |
String |
resolvePlaceholders(String text)
Resolve ${...} placeholders in the given text, replacing them with corresponding
property values as resolved by
getProperty(java.lang.String). |
String |
resolveRequiredPlaceholders(String text)
Resolve ${...} placeholders in the given text, replacing them with corresponding
property values as resolved by
getProperty(java.lang.String). |
boolean containsProperty(String key)
null.String getProperty(String key)
null if the key cannot be resolved.key - the property name to resolvegetProperty(String, String),
getProperty(String, Class),
getRequiredProperty(String)String getProperty(String key, String defaultValue)
defaultValue if the key cannot be resolved.key - the property name to resolvedefaultValue - the default value to return if no value is foundgetRequiredProperty(String),
getProperty(String, Class)<T> T getProperty(String key, Class<T> targetType)
null if the key cannot be resolved.key - the property name to resolvetargetType - the expected type of the property valuegetRequiredProperty(String, Class)<T> T getProperty(String key, Class<T> targetType, T defaultValue)
defaultValue if the key cannot be resolved.key - the property name to resolvetargetType - the expected type of the property valuedefaultValue - the default value to return if no value is foundgetRequiredProperty(String, Class)@Deprecated <T> Class<T> getPropertyAsClass(String key, Class<T> targetType)
getProperty(java.lang.String) with manual conversion
to Class via the application's ClassLoaderClass
of type T or null if the key cannot be resolved.ConversionException - if class specified
by property value cannot be found or loaded or if targetType is not assignable
from class specified by property valuegetProperty(String, Class)String getRequiredProperty(String key) throws IllegalStateException
null).IllegalStateException - if the key cannot be resolvedgetRequiredProperty(String, Class)<T> T getRequiredProperty(String key, Class<T> targetType) throws IllegalStateException
null).IllegalStateException - if the given key cannot be resolvedString resolvePlaceholders(String text)
getProperty(java.lang.String). Unresolvable placeholders with
no default value are ignored and passed through unchanged.text - the String to resolvenull)IllegalArgumentException - if given text is nullresolveRequiredPlaceholders(java.lang.String),
SystemPropertyUtils.resolvePlaceholders(String)String resolveRequiredPlaceholders(String text) throws IllegalArgumentException
getProperty(java.lang.String). Unresolvable placeholders with
no default value will cause an IllegalArgumentException to be thrown.null)IllegalArgumentException - if given text is null
or if any placeholders are unresolvableSystemPropertyUtils.resolvePlaceholders(String, boolean)