Android Fetch

Fluent API to query data in ContentResolver and SQLiteDatabase.

License

License

GroupId

GroupId

com.evernote
ArtifactId

ArtifactId

android-fetch
Last Version

Last Version

1.0.0
Release Date

Release Date

Type

Type

aar
Description

Description

Android Fetch
Fluent API to query data in ContentResolver and SQLiteDatabase.
Project URL

Project URL

https://github.com/evernote/fetch
Source Code Management

Source Code Management

https://github.com/evernote/fetch

Download android-fetch

How to add to project

<!-- https://jarcasting.com/artifacts/com.evernote/android-fetch/ -->
<dependency>
    <groupId>com.evernote</groupId>
    <artifactId>android-fetch</artifactId>
    <version>1.0.0</version>
    <type>aar</type>
</dependency>
// https://jarcasting.com/artifacts/com.evernote/android-fetch/
implementation 'com.evernote:android-fetch:1.0.0'
// https://jarcasting.com/artifacts/com.evernote/android-fetch/
implementation ("com.evernote:android-fetch:1.0.0")
'com.evernote:android-fetch:aar:1.0.0'
<dependency org="com.evernote" name="android-fetch" rev="1.0.0">
  <artifact name="android-fetch" type="aar" />
</dependency>
@Grapes(
@Grab(group='com.evernote', module='android-fetch', version='1.0.0')
)
libraryDependencies += "com.evernote" % "android-fetch" % "1.0.0"
[com.evernote/android-fetch "1.0.0"]

Dependencies

compile (2)

Group / Artifact Type Version
com.android.support » support-annotations jar 25.0.0
io.reactivex.rxjava2 : rxjava jar 2.0.0

Project Modules

There are no modules declared in this project.

Fetch

A library to eliminate boilerplate when querying ContentResolver and SQLiteDatabase.

Download

Download the latest version or grab via Gradle:

dependencies {
    compile 'com.evernote:android-fetch:1.0.0'
}

Usage

In its simplest form, the library enables this:

Cursor cursor;
List<String> result = new ArrayList<>();
try {
  cursor = contentResolver.query(sourceUri, null, null, null, null);
  while (cursor != null && cursor.moveToNext()) {
    result.add(cursor.getString(0));
  }
} finally {
  if (cursor != null) {
    cursor.close();
  }
}

To become this:

List<String> result = QueryBuilder.cr(sourceUri).fetch(contentResolver).toList(Converter.STRING);

Every parameter of query can be specified by calling additional optional methods, and you can use a custom Converter to build your own objects:

List<Thing> things = QueryBuilder.db("my_table")
  .projection("id", "name", "description")
  .selection("size = ?")
  .selectionArgs("42")
  .sortOrder("name")
  .fetch(database)
  .toList(new Converter<Thing>() {
    @Override
    public Thing convert(Cursor c) {
      int id = c.getInt(0);
      String name = c.getString(1);
      String description = c.getString(2);
      return new Thing(id, name, description);
    }
  });

There are also convenience methods for filters on list of values:

QueryBuilder.cr(sourceUri).select("name", nameList);

Is equivalent to:

contentResolver.query(sourceUri, null, "name in (?,?,?)", nameList.toArray(new String[nameList.size()]), null);

You can also use the RxJava binding to create an Observable from your query.

QueryBuilder.cr(MediaStore.Images.Media.EXTERNAL_CONTENT_URI)
        .projection(MediaStore.Images.Media.DATA)
        .selection(selection)
        .fetchStream(mContext, Converter.STRING)
        .map(...)
        .filter(...)
        .observeOn(...);

License

Copyright 2008-2016 Evernote Corporation. All rights reserved.

Use of the source code and binary libraries included in this package
is permitted under the following terms:

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

    1. Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
    2. Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
com.evernote

Evernote

Versions

Version
1.0.0
0.3.0
0.1.0