Examples with Table com.amazonaws.services.dynamodbv2.document.Table used on opensource projects

Example 66 with Table

use of com.amazonaws.services.dynamodbv2.document.Table in project aws-doc-sdk-examples by awsdocs.

the class TryDaxTests method scanTest.

void scanTest(String tableName, DynamoDB client, int iterations) {
    long startTime, endTime;
    System.out.println("Scan test - all items in the table");
    Table table = client.getTable(tableName);
    for (int i = 0; i < iterations; i++) {
        startTime = System.nanoTime();
        ItemCollection<ScanOutcome> items = table.scan();
        try {
            Iterator<Item> iter = items.iterator();
            while (iter.hasNext()) {
                iter.next();
            }
        } catch (Exception e) {
            System.err.println("Unable to scan table:");
            e.printStackTrace();
        }
        endTime = System.nanoTime();
        printTime(startTime, endTime, iterations);
    }
}

Example 67 with Table

use of com.amazonaws.services.dynamodbv2.document.Table in project aws-doc-sdk-examples by awsdocs.

the class DeleteTable method main.

public static void main(String[] args) {
    final String USAGE = "\n" + "Usage:\n" + "    DeleteTable <table>\n\n" + "Where:\n" + "    table - the table to delete.\n\n" + "Example:\n" + "    DeleteTable Greetings\n\n" + "**Warning** This program will actually delete the table\n" + "            that you specify!\n";
    if (args.length < 1) {
        System.out.println(USAGE);
        System.exit(1);
    }
    String table_name = args[0];
    System.out.format("Deleting table %s...\n", table_name);
    final AmazonDynamoDB ddb = AmazonDynamoDBClientBuilder.defaultClient();
    try {
        ddb.deleteTable(table_name);
    } catch (AmazonServiceException e) {
        System.err.println(e.getErrorMessage());
        System.exit(1);
    }
    System.out.println("Done!");
}

Example 68 with Table

use of com.amazonaws.services.dynamodbv2.document.Table in project aws-doc-sdk-examples by awsdocs.

the class DynamoDBScanItems method main.

public static void main(String[] args) {
    if (args.length < 1) {
        System.out.println("Please specify a table name");
        System.exit(1);
    }
    // snippet-start:[dynamodb.java.dynamoDB_scan.main]
    String tableName = args[0];
    AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard().build();
    try {
        ScanRequest scanRequest = new ScanRequest().withTableName(tableName);
        ScanResult result = client.scan(scanRequest);
        for (Map<String, AttributeValue> item : result.getItems()) {
            Set<String> keys = item.keySet();
            for (String key : keys) {
                System.out.println("The key name is " + key + "\n");
                System.out.println("The value is " + item.get(key).getS());
            }
        }
    } catch (AmazonDynamoDBException e) {
        e.getStackTrace();
    }
// snippet-end:[dynamodb.java.dynamoDB_scan.main]
}

Example 69 with Table

use of com.amazonaws.services.dynamodbv2.document.Table in project aws-doc-sdk-examples by awsdocs.

the class TryDaxHelper method createTable.

void createTable(String tableName, DynamoDB client) {
    Table table = client.getTable(tableName);
    try {
        System.out.println("Attempting to create table; please wait...");
        table = client.createTable(tableName, Arrays.asList(// Partition key
        new KeySchemaElement("pk", KeyType.HASH), // Sort key
        new KeySchemaElement("sk", KeyType.RANGE)), Arrays.asList(new AttributeDefinition("pk", ScalarAttributeType.N), new AttributeDefinition("sk", ScalarAttributeType.N)), new ProvisionedThroughput(10L, 10L));
        table.waitForActive();
        System.out.println("Successfully created table.  Table status: " + table.getDescription().getTableStatus());
    } catch (Exception e) {
        System.err.println("Unable to create table: ");
        e.printStackTrace();
    }
}

Example 70 with Table

use of com.amazonaws.services.dynamodbv2.document.Table in project aws-doc-sdk-examples by awsdocs.

the class TryDaxHelper method writeData.

void writeData(String tableName, DynamoDB client, int pkmax, int skmax) {
    Table table = client.getTable(tableName);
    System.out.println("Writing data to the table...");
    int stringSize = 1000;
    StringBuilder sb = new StringBuilder(stringSize);
    for (int i = 0; i < stringSize; i++) {
        sb.append('X');
    }
    String someData = sb.toString();
    try {
        for (Integer ipk = 1; ipk <= pkmax; ipk++) {
            System.out.println(("Writing " + skmax + " items for partition key: " + ipk));
            for (Integer isk = 1; isk <= skmax; isk++) {
                table.putItem(new Item().withPrimaryKey("pk", ipk, "sk", isk).withString("someData", someData));
            }
        }
    } catch (Exception e) {
        System.err.println("Unable to write item:");
        e.printStackTrace();
    }
}