Using Trinidad ComponentReference in ADF

We should use ComponentReference if we need to have a reference to an instance of the UIComponent class in managed bean that are longer than requested scoped.

Example:
Following code will be generated by default in managed bean when we create binding for UIComponent.

import oracle.adf.view.rich.component.rich.output.RichOutputText;

private RichOutputText acctId;

public void setAcctId(RichOutputText acctId) {
        this.acctId = acctId;
    }

public RichOutputText getAcctId() {
        return acctId;
    }

And this can be rewritten using ComponentReference as shown below.

import oracle.adf.view.rich.component.rich.output.RichOutputText;
import org.apache.myfaces.trinidad.util.ComponentReference;

private ComponentReference acctId;

public void setAcctId(RichOutputText acctId) {
      this.acctId =
                ComponentReference.newUIComponentReference(acctId);
    }

public RichOutputText getAcctId() {
        if (acctId != null) {
            return (RichOutputText)acctId.getComponent();
        }
        return null;
    }

Detailed explanation about ComponentReference can be found in following links.
http://myfaces.apache.org/trinidad/trinidad-api/apidocs/org/apache/myfaces/trinidad/util/ComponentReference.html

http://docs.oracle.com/cd/E16162_01/web.1112/e16181/gs_jdev.htm