io.avaje.validation.constraints.NotBlank Maven / Gradle / Ivy
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avaje validator constraint annotations
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package io.avaje.validation.constraints;
import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PARAMETER;
import static java.lang.annotation.ElementType.TYPE_USE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
/**
* The annotated element must not be {@code null} and must contain at least one non-whitespace
* character. Accepts {@code CharSequence}.
*
* @author Hardy Ferentschik
* @see Character#isWhitespace(char)
*/
@Constraint
@Documented
@Target({METHOD, FIELD, ANNOTATION_TYPE, PARAMETER, TYPE_USE})
@Retention(RUNTIME)
public @interface NotBlank {
/** Set the maximum length. By default this is 0 meaning unlimited. */
int max() default 0;
String message() default "{avaje.NotBlank.message}";
Class>[] groups() default {};
}