Class MapAdapter

java.lang.Object
com.codename1.properties.MapAdapter
public abstract class MapAdapter extends Object

Instances of this class adapt an arbitrary object type so a property can appear differently when it's placed into a Map or initialized from a Map. This impacts JSON generation too as it relies heavily on the process of transforming elements to/from maps.

To use this class create a new subclass of it and override the appropriate methods.

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    MapAdapter(Class type)
    By default subclasses should target a specific type but this can be further narrowed by overriding #useAdapterFor(com.codename1.properties.PropertyBase).

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    placeInMap(PropertyBase b, Map m)
    Places the given property into the given map
    void
    setFromMap(PropertyBase b, Map m)
    Sets the value of the property from the map object
    boolean
    useAdapterFor(PropertyBase b)
    Returns true if the adapter should be used for this property

    Methods inherited from class Object

    clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
     
    boolean
    equals(Object obj)
    Indicates whether some other object is "equal to" this one.
    final Class
    getClass()
    Returns the runtime class of an object.
    int
    hashCode()
    Returns a hash code value for the object.
    final void
    notify()
    Wakes up a single thread that is waiting on this object's monitor.
    final void
    notifyAll()
    Wakes up all threads that are waiting on this object's monitor.
    String
    toString()
    Returns a string representation of the object.
    final void
    wait()
    Causes current thread to wait until another thread invokes the method or the method for this object.
    final void
    wait(long timeout)
    Causes current thread to wait until either another thread invokes the method or the method for this object, or a specified amount of time has elapsed.
    final void
    wait(long timeout, int nanos)
    Causes current thread to wait until another thread invokes the method or the method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.

  • Constructor Details

    • MapAdapter

      protected MapAdapter(Class type)

      By default subclasses should target a specific type but this can be further narrowed by overriding #useAdapterFor(com.codename1.properties.PropertyBase).

      Parameters
      • type: the type to which the map adapter is bound

  • Method Details

    • useAdapterFor

      public boolean useAdapterFor(PropertyBase b)

      Returns true if the adapter should be used for this property

      Parameters
      • b: the property
      Returns

      true if this adapter should be used for this property

    • placeInMap

      public void placeInMap(PropertyBase b, Map m)

      Places the given property into the given map

      Parameters

      • b: the property object

      • m: the map instance

    • setFromMap

      public void setFromMap(PropertyBase b, Map m)

      Sets the value of the property from the map object

      Parameters

      • b: the property object

      • m: the map instance