DANECertificateFetcher (Bouncy Castle Cryptography 1.79 API Specification)

java.lang.Object
- org.bouncycastle.cert.dane.DANECertificateFetcher

```
public class DANECertificateFetcher
extends java.lang.Object
```
A single shot fetcher for a certificate which will only request the specific DNS record if the DANEEntryFetcher used on construction supports it.

Constructor Summary

Constructors
Constructor	Description
`DANECertificateFetcher(DANEEntryFetcherFactory fetcherFactory, org.bouncycastle.operator.DigestCalculator digestCalculator)`	Base constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.util.List`	`fetch(java.lang.String emailAddress)`	Fetch the certificates associated with the passed in email address if any exists.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DANECertificateFetcher
```
public DANECertificateFetcher(DANEEntryFetcherFactory fetcherFactory,
                              org.bouncycastle.operator.DigestCalculator digestCalculator)
```
    Base constructor.
    
    Parameters:
    
    fetcherFactory - the fetcher to use for resolving requests.
    
    digestCalculator - the digest calculator to use for calculating sub-domains.
- Method Detail
  - fetch
```
public java.util.List fetch(java.lang.String emailAddress)
                     throws DANEException
```
    Fetch the certificates associated with the passed in email address if any exists.
    
    Parameters:
    
    emailAddress - the email address of interest.
    
    Returns:
    
    a list of X509CertificateHolder objects, or an empty list if none present.
    
    Throws:
    
    DANEException - in case of an underlying DNS or record parsing problem.