## org.springframework.core.env
Class PropertySourcesPropertyResolver

    java.lang.Object
      org.springframework.core.env.AbstractPropertyResolver
          org.springframework.core.env.PropertySourcesPropertyResolver

All Implemented Interfaces:
  ConfigurablePropertyResolver, PropertyResolver

    public class PropertySourcesPropertyResolver

extends AbstractPropertyResolver

`PropertyResolver` implementation that resolves property values against an underlying set of `PropertySources`.

Since:
  3.1
Author:
  Chris Beams
See Also:
  `PropertySource`, `PropertySources`, `AbstractEnvironment`

Field Summary

Fields inherited from class org.springframework.core.env.AbstractPropertyResolver
`conversionService, logger`

Constructor Summary
`PropertySourcesPropertyResolver(PropertySources propertySources)` Create a new resolver against the given property sources.

Method Summary
`boolean` `containsProperty(String key)` Return whether the given property key is available for resolution, i.e., the value for the given key is not `null`.
`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> targetValueType)`
Return the property value associated with the given key, or `null` if the key cannot be resolved.

`

`<T> Class<T>`

`

`getPropertyAsClass(String key, Class<T> targetValueType)`
Convert the property value associated with the given key to a `Class` of type `T` or `null` if the key cannot be resolved.

Methods inherited from class org.springframework.core.env.AbstractPropertyResolver
`getConversionService, getProperty, getProperty, getRequiredProperty, getRequiredProperty, resolvePlaceholders, resolveRequiredPlaceholders, setConversionService, setPlaceholderPrefix, setPlaceholderSuffix, setRequiredProperties, setValueSeparator, validateRequiredProperties`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### PropertySourcesPropertyResolver

    public PropertySourcesPropertyResolver(PropertySources propertySources)

  Create a new resolver against the given property sources.

  Parameters:
    `propertySources` - the set of `PropertySource` objects to use

Method Detail

### containsProperty

    public boolean containsProperty(String key)

  Description copied from interface: `PropertyResolver`
  Return whether the given property key is available for resolution, i.e., the value for the given key is not `null`.

### getProperty

    public String getProperty(String key)

  Description copied from interface: `PropertyResolver`
  Return the property value associated with the given key, or `null` if the key cannot be resolved.

  Parameters:
    `key` - the property name to resolve
  See Also:
    `PropertyResolver.getProperty(String, String)`, `PropertyResolver.getProperty(String, Class)`, `PropertyResolver.getRequiredProperty(String)`

### getProperty

    public <T> T getProperty(String key,
                             Class<T> targetValueType)

  Description copied from interface: `PropertyResolver`
  Return the property value associated with the given key, or `null` if the key cannot be resolved.

  Parameters:
    `key` - the property name to resolve
  See Also:
    `PropertyResolver.getRequiredProperty(String, Class)`

### getPropertyAsClass

    public <T> Class<T> getPropertyAsClass(String key,
                                           Class<T> targetValueType)

  Description copied from interface: `PropertyResolver`
  Convert the property value associated with the given key to a `Class` of type `T` or `null` if the key cannot be resolved.

  See Also:
    `PropertyResolver.getProperty(String, Class)`