com.facebook.presto.jdbc.internal.javax.annotation.MatchesPattern Maven / Gradle / Ivy
package com.facebook.presto.jdbc.internal.javax.annotation;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.regex.Pattern;
import com.facebook.presto.jdbc.internal.javax.annotation.meta.TypeQualifier;
import com.facebook.presto.jdbc.internal.javax.annotation.meta.TypeQualifierValidator;
import com.facebook.presto.jdbc.internal.javax.annotation.meta.When;
/**
* This annotation is used to denote String values that should always match given pattern.
*
* When this annotation is applied to a method it applies to the method return value.
*/
@Documented
@TypeQualifier(applicableTo = String.class)
@Retention(RetentionPolicy.RUNTIME)
public @interface MatchesPattern {
@RegEx
String value();
int flags() default 0;
static class Checker implements TypeQualifierValidator {
public When forConstantValue(MatchesPattern annotation, Object value) {
Pattern p = Pattern.compile(annotation.value(), annotation.flags());
if (p.matcher(((String) value)).matches())
return When.ALWAYS;
return When.NEVER;
}
}
}
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