Marray
You should use Marray instead of ArrayList.
You can use map, filter, join and etc.
This library is very small.
Setup
dependencies {
compile 'kgmyshin:marray:0.0.3'
}
Usage
Constructor
List instance change Marray instance.
Marray<String> marray1 = new Marray<>();
Marray<String> marray2 = new Marray<>(Arrays.asList("first", "second", "third"));
map
Marray<Integer> marray = new Marray<>(Arrays.asList(1, 2, 5));
Marray<Integer> mapped = marray.map(new Marray.MapOpe<Integer, Integer>() {
@Override
public Integer func(Integer integer) {
return integer * 2;
}
}
);
// mapped => 2, 4, 10filter
Marray<Integer> marray = new Marray<>(Arrays.asList(15, 9, 15, 30, 2));
Marray<Integer> filtered = marray.filter(new Marray.CondOpe<Integer>() {
@Override
public boolean cond(Integer integer) {
return integer > 10;
}
}
);
// filtered => 15, 15, 30join
Marray<Integer> marray = new Marray<>(Arrays.asList(15, 9, 15, 30, 2));
Log.d("Log", marray.join(","));
// "15,9,15,30,2"reduce
Marray<Integer> marray = new Marray(Arrays.asList(1, 2, 3, 4, 5));
int result = marray.reduce(new Marray.ReduceOpe<Integer>() {
@Override
public Integer func(Integer x, Integer y) {
return x + y;
}
}
);
// 15 numbers
Marray<Integer> marray = new Marray<>();
for (int i = 0; i < 50; i++) {
marray.add(i * 3);
}
marray.zero();
// 0
marray.one();
// 3
marray.two();
// 6
marray.three();
// 9
marray.four();
// 12
marray.five();
// 15
marray.fortyTwo();
// 126Method Chain
You can use method chain.
Marray<String> marray = new Marray<>(Arrays.asList("one", "two", "three", "four"));
marray.map(new Marray.MapOpe<String, String>() {
@Override
public String func(String s) {
return s + s;
}
}
).filter(new Marray.CondOpe<String>() {
@Override
public boolean func(String s) {
return s.length() > 7;
}
}
)
.join(" ");
// "threethree fourfour"Contributing
- Fork it ( https://github.com/kgmyshin/Marray )
- Create your feature branch (git checkout -b my-new-feature)
- Commit your changes (git commit -am 'Add some feature')
- Push to the branch (git push origin my-new-feature)
- Create new Pull Request
License
Copyright 2015 kgmyshin Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.