@Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;

        if (obj instanceof Document == false)
            return false;
        Document other = (Document) obj;
        if (other.getContentReference() == null ^ this.getContentReference() == null)
            return false;
        if (other.getContentReference() != null && other.getContentReference().equals(this.getContentReference()) == false)
            return false;
        if (other.getExcerpt() == null ^ this.getExcerpt() == null)
            return false;
        if (other.getExcerpt() != null && other.getExcerpt().equals(this.getExcerpt()) == false)
            return false;
        if (other.getTitle() == null ^ this.getTitle() == null)
            return false;
        if (other.getTitle() != null && other.getTitle().equals(this.getTitle()) == false)
            return false;
        return true;
    }
Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be
redacted from this string using a placeholder value.

@return A string representation of this object.

@see java.lang.Object#toString()
aws-java-sdk-qconnect/src/main/java/com/amazonaws/services/qconnect/model/Document.java