Spring: Using builder pattern to create a bean

Question

I use ektorp to connect to CouchDB.

The way to build an ektorp HttpClient instance is to use builder pattern:

HttpClient httpClient = n         


        

Answer 1

You may try to implement FactoryBean interface:

public class HttpFactoryBean implements FactoryBean{

private String host;
private int port;


public HttpClient getObject() throws Exception {
    return new StdHttpClient.Builder()
                            .host(host)
                            .port(port)
                            .build();
}

public Class getObjectType() {
    return StdHttpClient.class;
}

public boolean isSingleton() {
    return true;
}

public void setHost(String host) {
    this.host = host;
}

public void setPort(int port) {
    this.port = port;
}}

And add to config following bean definition:

Then you can inject this bean to another beans, it will be resolved as StdHttpClient instance.