Package ej.property.loader

Class CompositePropertyLoader

  • All Implemented Interfaces:
    PropertyLoader
    public class CompositePropertyLoader
extends java.lang.Object
implements PropertyLoader
    A composite property loader contains a list a property loaders. It searches the requested properties in its children sequentially respecting the order they are added.

    • Constructor Summary

      Constructors 
      Constructor Description
      CompositePropertyLoader()
      Creates a new empty composite service loader.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void addPropertyLoader​(PropertyLoader propertyLoader)
      Adds a property loader at the end of the list a property loaders used by this composite property loader.
      java.lang.String getProperty​(java.lang.String key)
      Gets the value mapped with the specified key.
      java.lang.String getProperty​(java.lang.String key, java.lang.String defaultValue)
      Gets the value mapped with the specified key or a default value.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • CompositePropertyLoader

        public CompositePropertyLoader()
        Creates a new empty composite service loader.

    • Method Detail

      • addPropertyLoader

        public void addPropertyLoader​(PropertyLoader propertyLoader)
        Adds a property loader at the end of the list a property loaders used by this composite property loader.
        Parameters:
        propertyLoader - the property loader to add.
        Throws:
        java.lang.NullPointerException - if the given property loader is null.

      • getProperty

        @Nullable
public java.lang.String getProperty​(java.lang.String key)
        Description copied from interface: PropertyLoader
        Gets the value mapped with the specified key.
        Specified by:
        getProperty in interface PropertyLoader
        Parameters:
        key - the key.
        Returns:
        the value of the property, or null if the property is not found.

      • getProperty

        public java.lang.String getProperty​(java.lang.String key,
                                    java.lang.String defaultValue)
        Description copied from interface: PropertyLoader
        Gets the value mapped with the specified key or a default value.
        Specified by:
        getProperty in interface PropertyLoader
        Parameters:
        key - the key.
        defaultValue - the default value.
        Returns:
        the value of the property, or the default value if the property is not found.