https://github.com/tokuhirom/tinyvalidator

Tiny validation library for Java 8
https://github.com/tokuhirom/tinyvalidator

Last synced: 18 days ago
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Tiny validation library for Java 8

• Host: GitHub
• URL: https://github.com/tokuhirom/tinyvalidator
• Owner: tokuhirom
• Created: 2014-09-07T03:19:19.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2018-09-14T07:53:17.000Z (about 6 years ago)
• Last Synced: 2024-10-17T23:12:47.674Z (28 days ago)
• Language: Java
• Homepage: http://search.maven.org/#search%7Cga%7C1%7Ca%3A%22tinyvalidator%22
• Size: 95.7 KB
• Stars: 13
• Watchers: 3
• Forks: 3
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# tinyvalidator

This is a tiny validation library for Java. This library does not support JSR 303.

This library implements subset of JSR 303 Bean validator.

## SYNOPSIS

    Validator validator = new Validator();

    List violations = validator.validate(foo);

    String msg = violations.stream()

      .map(violation -> violation.getName() + " " + violation.getMessage())

      .collect(Collectors.joining(","));

Bean definition:

    @Data

    public static class Foo {

      @Pattern(regexp = "\\A[0-9]+\\z")

      private String bar;

    }

## Constraints

### `@NotNull`

    @Data

    public static class Foo {

      @NotNull

      private String bar;

    }

bar should not be null.

### `@Size`

    @Data

    public static class Foo {

      @Size(min=2, max=5)

      private String bar;

    }

`bar` should be grater than or equals 2, less than or equals 5.

min's default value is 0, max's default value is `Integer.MAX_VALUE`.

### `@Pattern`

    @Data

    public static class Foo {

      @Pattern(regexp="\\A[0-9]+\\z")

      private String bar;

    }

`bar` should match the regular expression.

### `@HttpUrl`

    @Data

    public static class Foo {

      @HttpUrl

      private String url;

    }

Validate the field as valid HTTP URL.

### `@Email`

    @Data

    public static class Foo {

      @Email

      private String email;

    }

Validate the field as valid E-mail address.

## HOW DO I DEBUG VALIDATION RULE USING THIS LIBRARY?

This library output logs with slf4j. The package name is under `the me.geso.tinyvalidator`. Please set the debug log level as `debug`.

If you are using slf4j-simple, please try following VM options.

    -Dorg.slf4j.simpleLogger.defaultLogLevel=debug

## HOW DO I IMPLEMENT MY OWN RULE?

 1. Implement annotation

 2. Implement constraint validator

## MOTIVATION

I want to use tiny and thin validation library.

I know JSR 303. Of course. But I need really *tiny* and *thin* library.

## Install from maven

This package is available on Maven central.

http://search.maven.org/#search%7Cga%7C1%7Ca%3A%22tinyvalidator%22

## Documents

javadoc is available on [javadoc.io](javadoc.io/doc/me.geso/tinyvalidator/)

## AUTHOR

Tokuhiro Matsuno 

## LICENSE

  The MIT License (MIT)

  Copyright © 2014 Tokuhiro Matsuno, http://64p.org/ 

  Permission is hereby granted, free of charge, to any person obtaining a copy

  of this software and associated documentation files (the “Software”), to deal

  in the Software without restriction, including without limitation the rights

  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

  copies of the Software, and to permit persons to whom the Software is

  furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in

  all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

  THE SOFTWARE.