fixed delete use case, query returns a list of results

usecases/src/main/java/com/zeyad/usecases/api/DataService.kt

@@ -184,8 +184,8 @@ internal class DataService(private val mDataStoreFactory: DataStoreFactory,
         }
     }
 
-    override fun <M> queryDisk(query: String, clazz: Class<M>): Single<M> {
-        val result: Single<M> = try {
+    override fun <M> queryDisk(query: String, clazz: Class<M>): Single<List<M>> {
+        val result: Single<List<M>> = try {
             mDataStoreFactory.disk(Any::class.java).queryDisk(query, clazz)
                     .compose(ReplayingShare.instance()).singleOrError()
         } catch (e: IllegalAccessException) {

usecases/src/main/java/com/zeyad/usecases/api/IDataService.kt

@@ -95,7 +95,7 @@ interface IDataService {
      * @param realmQueryProvider query tp select list of item(s).
      * @return
      */
-    fun <M> queryDisk(query: String, clazz: Class<M>): Single<M>
+    fun <M> queryDisk(query: String, clazz: Class<M>): Single<List<M>>
 
     /**
      * Creates a repository pattern with live objects

usecases/src/main/java/com/zeyad/usecases/db/BaseDao.kt

@@ -13,7 +13,7 @@ interface BaseDao<E> {
     fun getAllItems(query: SupportSQLiteQuery): Single<List<E>>
 
     @RawQuery
-    fun getQuery(query: SupportSQLiteQuery): Single<E>
+    fun getQuery(query: SupportSQLiteQuery): Single<List<E>>
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     fun insertItemsReplace(vararg objects: E): List<Long>

usecases/src/main/java/com/zeyad/usecases/db/DataBaseManager.kt

@@ -32,7 +32,7 @@ interface DataBaseManager {
      *
      * @param query The query used to look for inside the DB.
      */
-    fun <E> getQuery(query: String, clazz: Class<E>): Flowable<E>
+    fun <E> getQuery(query: String, clazz: Class<E>): Flowable<List<E>>
 
     /**
      * Puts and element into the DB.
@@ -70,23 +70,23 @@ interface DataBaseManager {
      *
      * @param clazz Class type of the items to be deleted.
      */
-    fun <E> evictAll(clazz: Class<E>): Single<Any>
+    fun <E> evictAll(clazz: Class<E>): Single<Boolean>
 
     /**
      * Evict a collection elements of the DB.
      *
      * @param list        List to be deleted.
      * @param clazz   Class type of the items to be deleted.
      */
-    fun <E> evictCollection(list: List<E>, clazz: Class<E>): Single<Any>
+    fun <E> evictCollection(list: List<E>, clazz: Class<E>): Single<Boolean>
 
     /**
      * Evict a collection elements of the DB.
      *
      * @param list        List of ids to be deleted.
      * @param clazz   Class type of the items to be deleted.
      */
-    fun <E> evictCollectionById(list: List<Any>, clazz: Class<E>, idFieldName: String): Single<Any>
+    fun <E> evictCollectionById(list: List<Any>, clazz: Class<E>, idFieldName: String): Single<Boolean>
 
     /**
      * Evict element by id of the DB.