JarCastingrequire
Lightweight assertion library with predefined messages.
Methods
All methods produce exception IllegalArgumentException in the case if statement false. All methods return given value back without any modifications.
| Method | Description |
|---|---|
| Require.nonNull | Check if value is not null. |
| Require.nonBlank | Check if value is not null and not blank, contains any character different from whitespace |
| Require.nonEmpty | Check if string or collection is not null and not empty |
| Require.length | Check if value is not null and has length between minLength and maxLength |
| Require.maxLength | Check if value is not null and has length between 0 and maxLength |
| Require.minLength | Check if value is not null and has length more then minLength |
| Require.nonBlankMaxLength | Check if value is not blank and has length between 1 and maxLength |
| Require.format | Check if value is not null and has match regexp pattern format |
| Require.positive | Check if numeric value is not null and positive |
| Require.negative | Check if numeric value is not null and negative |
| Require.gtThanZero | Check if numeric is not null and grate than 0 |
| Require.lsThanZero | Check if numeric is not null and less than 0 |
Example
public final class RequestId {
private final String value;
public RequestId(@Nullable final String value) {
this.value = Require.nonBlank(value, "requestId");
}
@Nonnull
public String value() {
return value;
}
}
Usage
Library is available on MavenCentral.
Apache Maven:
<dependency>
<groupId>com.github.ilubenets</groupId>
<artifactId>require</artifactId>
<version>1.3</version>
</dependency>
Gradle Groovy DSL:
dependencies {
implementation 'com.github.ilubenets:require:1.3'
}