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ListTables

Pragya Keshap answered on February 13, 2023 Popularity 1/10 Helpfulness 1/10

answer ListTables

ListTables

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public class ListTables {

    public static void main(String[] args) {

        System.out.println("Listing your Amazon DynamoDB tables:\n");
        ProfileCredentialsProvider credentialsProvider = ProfileCredentialsProvider.create();
        Region region = Region.US_EAST_1;
        DynamoDbClient ddb = DynamoDbClient.builder()
               .credentialsProvider(credentialsProvider)
                .region(region)
                .build();
        listAllTables(ddb);
        ddb.close();
    }

    // snippet-start:[dynamodb.java2.list_tables.main]
    public static void listAllTables(DynamoDbClient ddb){

        boolean moreTables = true;
        String lastName = null;

        while(moreTables) {
            try {
                ListTablesResponse response = null;
                if (lastName == null) {
                    ListTablesRequest request = ListTablesRequest.builder().build();
                    response = ddb.listTables(request);
                } else {
                    ListTablesRequest request = ListTablesRequest.builder()
                            .exclusiveStartTableName(lastName).build();
                    response = ddb.listTables(request);
                }

                List<String> tableNames = response.tableNames();
                if (tableNames.size() > 0) {
                    for (String curName : tableNames) {
                        System.out.format("* %s\n", curName);
                    }
                } else {
                    System.out.println("No tables found!");
                    System.exit(0);
                }

                lastName = response.lastEvaluatedTableName();
                if (lastName == null) {
                    moreTables = false;
                }

            } catch (DynamoDbException e) {
                System.err.println(e.getMessage());
                System.exit(1);
            }
        }
        System.out.println("\nDone!");
    }
    // snippet-end:[dynamodb.java2.list_tables.main]
}

https://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_ListTables.html

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java

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Contributed on Feb 13 2023

Pragya Keshap

0 Answers Avg Quality 2/10

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