https://github.com/jmnarloch/lazy

Java 8 lazy type
https://github.com/jmnarloch/lazy

java java-8 lazy library

Last synced: 2 months ago
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Java 8 lazy type

• Host: GitHub
• URL: https://github.com/jmnarloch/lazy
• Owner: jmnarloch
• License: apache-2.0
• Created: 2017-02-05T01:11:13.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2017-02-10T05:31:52.000Z (about 8 years ago)
• Last Synced: 2025-01-07T13:14:50.516Z (4 months ago)
• Topics: java, java-8, lazy, library
• Language: Java
• Size: 80.1 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Java 8 Lazy type

> General purpose, thread safe and high performance lazy type

[![Build Status](https://travis-ci.org/jmnarloch/lazy.svg?branch=master)](https://travis-ci.org/jmnarloch/lazy)

[![Coverage Status](https://coveralls.io/repos/jmnarloch/lazy/badge.svg?branch=master&service=github)](https://coveralls.io/github/jmnarloch/lazy?branch=master)

## Setup

Add the library to your project:

```xml

  io.jmnarloch

  lazy

  1.0.0

```

 

## Usage

Usage is really simple, you can create a lazy reference to any object. The instance is being provided by a `Supplier`.

The `Supplier` will be evaluated upon the first call of the `get` method.

```java

final Lazy value = Lazy.create(() -> new ComplexObject());

// get the object instance

ComplexObject object = value.get();

```

The implementation is guaranteed to be thread safe.

## Performance

The actual `Lazy` type implementation uses lock free implementation giving it very good performance compared to lock 

variant whenever it uses the `synchronized` Java keyword or directly `Lock` type.

| Benchmark | Mode | Cnt | Score | Error | Units |

| --------- | ---- | --- | ----- | ----- | ----- |

| LazyBenchmark.benchmarkGet | thrpt | 20 | 271440905,189 | ± 2721909,603 | ops/s |

| LazyBenchmark.benchmarkInitializeAndGet | thrpt | 20 | 274012023,081 | ± 1720484,338 | ops/s |

## License

Apache 2.0