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

        if (obj instanceof DefineExpressionResult == false)
            return false;
        DefineExpressionResult other = (DefineExpressionResult) obj;
        if (other.getExpression() == null ^ this.getExpression() == null)
            return false;
        if (other.getExpression() != null && other.getExpression().equals(this.getExpression()) == 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-cloudsearch/src/main/java/com/amazonaws/services/cloudsearchv2/model/DefineExpressionResult.java