@Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getTableName() != null)
            sb.append("TableName: ").append(getTableName()).append(",");
        if (getRoleArn() != null)
            sb.append("RoleArn: ").append(getRoleArn()).append(",");
        if (getOperation() != null)
            sb.append("Operation: ").append(getOperation()).append(",");
        if (getHashKeyField() != null)
            sb.append("HashKeyField: ").append(getHashKeyField()).append(",");
        if (getHashKeyValue() != null)
            sb.append("HashKeyValue: ").append(getHashKeyValue()).append(",");
        if (getHashKeyType() != null)
            sb.append("HashKeyType: ").append(getHashKeyType()).append(",");
        if (getRangeKeyField() != null)
            sb.append("RangeKeyField: ").append(getRangeKeyField()).append(",");
        if (getRangeKeyValue() != null)
            sb.append("RangeKeyValue: ").append(getRangeKeyValue()).append(",");
        if (getRangeKeyType() != null)
            sb.append("RangeKeyType: ").append(getRangeKeyType()).append(",");
        if (getPayloadField() != null)
            sb.append("PayloadField: ").append(getPayloadField());
        sb.append("}");
        return sb.toString();
    }
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-iot/src/main/java/com/amazonaws/services/iot/model/DynamoDBAction.java