Package org.jfree.report.modules.preferences.base

Class NullConfigStorage

  • All Implemented Interfaces:
    ConfigStorage
    public class NullConfigStorage
extends java.lang.Object
implements ConfigStorage
    An empty default implementation. This config storare will not store any values and will provide no read access to stored properties by denying their existence.
    Author:
    Thomas Morgner

    • Constructor Summary

      Constructors 
      Constructor Description
      NullConfigStorage()
      DefaultConstructor.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean isAvailable​(java.lang.String configPath)
      Tests, whether some configuration data exists for the given configuration.
      org.pentaho.reporting.libraries.base.config.Configuration load​(java.lang.String configPath, org.pentaho.reporting.libraries.base.config.Configuration defaults)
      Loads the properties from the given path, specifying the given properties as default.
      void store​(java.lang.String configPath, org.pentaho.reporting.libraries.base.config.Configuration properties)
      This method does nothing.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • NullConfigStorage

        public NullConfigStorage()
        DefaultConstructor.

    • Method Detail

      • store

        public void store​(java.lang.String configPath,
                  org.pentaho.reporting.libraries.base.config.Configuration properties)
        This method does nothing.
        Specified by:
        store in interface ConfigStorage
        Parameters:
        configPath - this parameter is not used.
        properties - this parameter is not used.
        See Also:
        (java.lang.String, java.util.Properties)

      • load

        public org.pentaho.reporting.libraries.base.config.Configuration load​(java.lang.String configPath,
                                                                      org.pentaho.reporting.libraries.base.config.Configuration defaults)
                                                               throws ConfigStoreException
        Loads the properties from the given path, specifying the given properties as default.

        This implementation will always throw and ConfigStoreException as the specified resource is not available.

        Specified by:
        load in interface ConfigStorage
        Parameters:
        configPath - the configuration path from where to read the properties.
        defaults - the property set that acts as fallback to provide default values.
        Returns:
        the loaded properties
        Throws:
        ConfigStoreException - always throws this exception as the specified resource will be not available.

      • isAvailable

        public boolean isAvailable​(java.lang.String configPath)
        Tests, whether some configuration data exists for the given configuration.

        This method returns always false and denies the existence of any resource.

        Specified by:
        isAvailable in interface ConfigStorage
        Parameters:
        configPath - the configuration path to the property storage.
        Returns:
        always false as this implementation does not store anything.