com.abubusoft.kripton.android.livedata

Class KriptonComputableLiveData<T>

java.lang.Object

com.abubusoft.kripton.android.livedata.KriptonComputableLiveData<T>

Type Parameters:

T - The type of the live data

public abstract class KriptonComputableLiveData<T>
extends Object

A LiveData class that can be invalidated and computed on demand.

This is an internal class for now, might be public if we see the necessity.

Constructor Summary

Constructors

Constructor and Description
KriptonComputableLiveData() Creates a computable live data which is computed when there are active observers.

Method Summary

Modifier and Type	Method and Description
protected abstract T	compute() Compute.
KriptonLiveData<T>	getLiveData() Returns the LiveData managed by this class.
void	invalidate() Invalidates the LiveData.

Methods inherited from class java.lang.Object

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

Constructor Detail

KriptonComputableLiveData

public KriptonComputableLiveData()

Creates a computable live data which is computed when there are active observers.

It can also be invalidated via invalidate() which will result in a call to compute() if there are active observers (or when they start observing)

Method Detail

getLiveData

@NonNull
public KriptonLiveData<T> getLiveData()

Returns the LiveData managed by this class.

Returns:

A LiveData that is controlled by ComputableLiveData.

invalidate

public void invalidate()

Invalidates the LiveData.

When there are active observers, this will trigger a call to compute().

compute

@WorkerThread
protected abstract T compute()

Compute.

Returns:

the t