与 AWS SDK ExecuteOpenCypherExplainQuery 配合使用 - AWS SDK 代码示例

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与 AWS SDK ExecuteOpenCypherExplainQuery 配合使用

以下代码示例演示了如何使用 ExecuteOpenCypherExplainQuery。

Java
适用于 Java 的 SDK 2.x
注意

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    /**
     * Executes an OpenCypher EXPLAIN query using the provided Neptune data client.
     *
     * @param client The Neptune data client to use for the query execution.
     */
    public static void executeGremlinQuery(NeptunedataClient client) {
        try {
            System.out.println("Executing OpenCypher EXPLAIN query...");
            ExecuteOpenCypherExplainQueryRequest request = ExecuteOpenCypherExplainQueryRequest.builder()
                    .openCypherQuery("MATCH (n {code: 'ANC'}) RETURN n")
                    .explainMode("debug")
                    .build();

            ExecuteOpenCypherExplainQueryResponse response = client.executeOpenCypherExplainQuery(request);

            if (response.results() != null) {
                System.out.println("Explain Results:");
                System.out.println(response.results().asUtf8String());
            } else {
                System.out.println("No explain results returned.");
            }

        } catch (NeptunedataException e) {
            System.err.println("Neptune error: " + e.awsErrorDetails().errorMessage());
        } catch (Exception e) {
            System.err.println("Unexpected error: " + e.getMessage());
        } finally {
            client.close();
        }
    }