Bean utilities

ROME contains some utility classes that help us implementing the equals, hashCode, toString and clone methods by using reflection. Although the classes are public they are not meant to be used outside of ROME and are subject to change (breaking backward compatibility).

EqualsBean

The EqualsBean class provides a reflection-based implementation of the equals and hashCode methods.

public class MyBean {

    // [...]

    public boolean equals(Object obj) {
        return EqualsBean.beanEquals(MyBean.class, this, obj);
    }

    public int hashCode() {
        return EqualsBean.beanHashCode(this);
    }

}

ToStringBean

The ToStringBean class provides a reflection-based implementation of the toString method.

public class MyBean {

    // [...]

    public String toString() {
        return ToStringBean.toString(MyBean.class, this);
    }

}

CloneableBean

The CloneableBean class provides a reflection-based implementation of the clone method.

public class MyBean implements Cloneable {

    private static final Set<String> IGNORE_PROPERTIES = Collections.emptySet();

    // [...]

    public Object clone() throws CloneNotSupportedException {
        return CloneableBean.beanClone(this, IGNORE_PROPERTIES);
    }

}

It copies all properties whose names are not on the ignore list. This is useful for cases where the Bean has convenience properties (properties that are actually references to other properties or properties of properties). For example the SyndFeed and SyndEntry beans have such convenience properties.