added in version 1.1.0
belongs to Maven artifact android.arch.persistence.room:runtime:1.1.0-beta2

Summary: Ctors | Protected Ctors | Methods | Inherited Methods

InvalidationTracker.Observer

The android.arch Architecture Components packages are no longer maintained. They have been superseded by the corresponding androidx.* packages. See androidx.room.InvalidationTracker.Observer instead.

public static abstract class InvalidationTracker.Observer
extends Object

java.lang.Object
↳	android.arch.persistence.room.InvalidationTracker.Observer

An observer that can listen for changes in the database.

Summary

Public constructors
`InvalidationTracker.Observer(String[] tables)` Observes the given list of tables.

Protected constructors
`InvalidationTracker.Observer(String firstTable, String... rest)` Observes the given list of tables.

Public methods
`abstract void`	`onInvalidated(Set<String> tables)` Called when one of the observed tables is invalidated in the database.

From class


        
          java.lang.Object

added in version 1.1.0

InvalidationTracker.Observer (String[] tables)

Observes the given list of tables.

Parameters
`tables`	`String`: The list of tables to observe for changes.

added in version 1.1.0

InvalidationTracker.Observer (String firstTable, 
                String... rest)

Observes the given list of tables.

Parameters
`firstTable`	`String`: The table name
`rest`	`String`: More table names

added in version 1.1.0

void onInvalidated (Set<String> tables)

Called when one of the observed tables is invalidated in the database.

Parameters
`tables`	`Set`: A set of invalidated tables. This is useful when the observer targets multiple tables and want to know which table is invalidated.