本文整理汇总了Java中com.datastax.driver.core.Session.execute方法的典型用法代码示例。如果您正苦于以下问题：Java Session.execute方法的具体用法？Java Session.execute怎么用？Java Session.execute使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类com.datastax.driver.core.Session的用法示例。
在下文中一共展示了Session.execute方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: primeAndExecuteQueries
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
private void primeAndExecuteQueries(String[] primed, String[] queries) throws Exception {
SuccessResult result = getSampleSuccessResult();
for (String primeQuery : primed) {
server.prime(when(primeQuery).then(result));
}
try (com.datastax.driver.core.Cluster driverCluster =
defaultBuilder(server.getCluster())
.withRetryPolicy(FallthroughRetryPolicy.INSTANCE)
.build()) {
Session session = driverCluster.connect();
server.getCluster().clearLogs();
for (String executeQuery : queries) {
SimpleStatement stmt = new SimpleStatement(executeQuery);
stmt.setDefaultTimestamp(100);
session.execute(stmt);
}
}
}
示例2: main
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
public static void main(String[] args) {
Session session = Connection.connect();
PreparedStatement preparedStatement = session.prepare("insert into user (id, name, age) values (?, ?, ?)");
try {
BoundStatement boundStatement = preparedStatement.bind(UUIDs.timeBased(), "Hector", 34);
ResultSet rs = session.execute(boundStatement);
System.out.println(rs);
} catch (Exception ex) {
ex.printStackTrace();
}
Connection.close();
}
示例3: startServer
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
@BeforeClass
public static void startServer() throws InterruptedException, TTransportException, ConfigurationException, IOException, URISyntaxException {
if (! started) {
EmbeddedCassandraServerHelper.startEmbeddedCassandra(CASSANDRA_UNIT_RANDOM_PORT_YAML, CASSANDRA_TIMEOUT);
Cluster cluster = new Cluster.Builder().addContactPoints("127.0.0.1").withPort(getNativeTransportPort()).build();
Session session = cluster.connect();
String createQuery = "CREATE KEYSPACE " + CASSANDRA_UNIT_KEYSPACE + " WITH replication={'class' : 'SimpleStrategy', 'replication_factor':1}";
session.execute(createQuery);
String useKeyspaceQuery = "USE " + CASSANDRA_UNIT_KEYSPACE;
session.execute(useKeyspaceQuery);
CQLDataLoader dataLoader = new CQLDataLoader(session);
applyScripts(dataLoader, "config/cql/changelog/", "*.cql");
started = true;
}
}
示例4: selectByDevice
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
@Override
public Status selectByDevice(TsPoint point, Date startTime, Date endTime) {
long costTime = 0L;
Cluster cluster = null;
try {
// cluster = Cluster.builder().addContactPoint(CASSADRA_URL).build();
// Session session = cluster.connect(KEY_SPACE_NAME);
Session session = SessionManager.getSession();
String selectCql = "SELECT * FROM point WHERE device_code='" + point.getDeviceCode() + "' and timestamp>="
+ startTime.getTime() + " and timestamp<=" + endTime.getTime() + " ALLOW FILTERING";
// System.out.println(selectCql);
long startTime1 = System.nanoTime();
ResultSet rs = session.execute(selectCql);
long endTime1 = System.nanoTime();
costTime = endTime1 - startTime1;
} finally {
if (cluster != null)
cluster.close();
}
// System.out.println("此次查询消耗时间[" + costTime / 1000 + "]s");
return Status.OK(costTime);
}
示例5: selectByDeviceAndSensor
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
@Override
public Status selectByDeviceAndSensor(TsPoint point, Date startTime, Date endTime) {
long costTime = 0L;
Cluster cluster = null;
try {
// cluster = Cluster.builder().addContactPoint(CASSADRA_URL).build();
// Session session = cluster.connect(KEY_SPACE_NAME);
Session session = SessionManager.getSession();
String selectCql = "SELECT * FROM point WHERE device_code='" + point.getDeviceCode() + "' and sensor_code='"
+ point.getSensorCode() + "' and timestamp>=" + startTime.getTime() + " and timestamp<="
+ endTime.getTime() + " ALLOW FILTERING";
// System.out.println(selectCql);
long startTime1 = System.nanoTime();
ResultSet rs = session.execute(selectCql);
long endTime1 = System.nanoTime();
costTime = endTime1 - startTime1;
} finally {
if (cluster != null)
cluster.close();
}
// System.out.println("此次查询消耗时间[" + costTime / 1000 + "]s");
return Status.OK(costTime);
}
示例6: selectMinByDeviceAndSensor
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
@Override
public Status selectMinByDeviceAndSensor(String deviceCode, String sensorCode, Date startTime, Date endTime) {
long costTime = 0L;
Cluster cluster = null;
try {
cluster = Cluster.builder().addContactPoint(CASSADRA_URL).build();
Session session = cluster.connect(KEY_SPACE_NAME);
String selectCql = "SELECT MIN(value) FROM point WHERE device_code='" + deviceCode + "' and sensor_code='"
+ sensorCode + "' and timestamp>=" + startTime.getTime() + " and timestamp<=" + endTime.getTime()
+ " ALLOW FILTERING";
// System.out.println(selectCql);
long startTime1 = System.nanoTime();
ResultSet rs = session.execute(selectCql);
long endTime1 = System.nanoTime();
costTime = endTime1 - startTime1;
} finally {
if (cluster != null)
cluster.close();
}
// System.out.println("此次查询消耗时间[" + costTime / 1000 + "]s");
return Status.OK(costTime);
}
示例7: selectAvgByDeviceAndSensor
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
@Override
public Status selectAvgByDeviceAndSensor(String deviceCode, String sensorCode, Date startTime, Date endTime) {
long costTime = 0L;
Cluster cluster = null;
try {
cluster = Cluster.builder().addContactPoint(CASSADRA_URL).build();
Session session = cluster.connect(KEY_SPACE_NAME);
String selectCql = "SELECT AVG(value) FROM point WHERE device_code='" + deviceCode + "' and sensor_code='"
+ sensorCode + "' and timestamp>=" + startTime.getTime() + " and timestamp<=" + endTime.getTime()
+ " ALLOW FILTERING";
// System.out.println(selectCql);
long startTime1 = System.nanoTime();
ResultSet rs = session.execute(selectCql);
long endTime1 = System.nanoTime();
costTime = endTime1 - startTime1;
} finally {
if (cluster != null)
cluster.close();
}
// System.out.println("此次查询消耗时间[" + costTime / 1000 + "]s");
return Status.OK(costTime);
}
示例8: selectCountByDeviceAndSensor
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
@Override
public Status selectCountByDeviceAndSensor(String deviceCode, String sensorCode, Date startTime, Date endTime) {
long costTime = 0L;
Cluster cluster = null;
try {
cluster = Cluster.builder().addContactPoint(CASSADRA_URL).build();
Session session = cluster.connect(KEY_SPACE_NAME);
String selectCql = "SELECT COUNT(*) FROM point WHERE device_code='" + deviceCode + "' and sensor_code='"
+ sensorCode + "' and timestamp>=" + startTime.getTime() + " and timestamp<=" + endTime.getTime()
+ " ALLOW FILTERING";
// System.out.println(selectCql);
long startTime1 = System.nanoTime();
ResultSet rs = session.execute(selectCql);
long endTime1 = System.nanoTime();
costTime = endTime1 - startTime1;
} finally {
if (cluster != null)
cluster.close();
}
// System.out.println("此次查询消耗时间[" + costTime / 1000 + "]s");
return Status.OK(costTime);
}
示例9: listPackages
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
@Override
public List<DataPackage> listPackages() {
List<DataPackage> dataPacks = new ArrayList<>();
try {
Session session;
Cluster cluster;
cluster = Cluster.builder().addContactPoint("127.0.0.1").build();
session = cluster.connect();
Statement statement = QueryBuilder.select()
.all()
.from(DATABASE, MAIN_TABLE);
ResultSet results = session.execute(statement);
for(Row row : results) {
DataPackage dataPack = new DataPackage();
dataPack.setId(row.getLong(COL_ID));
dataPack.setDescription(row.getString(COL_DESC));
dataPacks.add(dataPack);
}
} catch (Exception ex) {
System.out.println(ex.getMessage());
}
return dataPacks;
}
示例10: createTable
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
static boolean createTable(Session client, String appid) {
if (StringUtils.isBlank(appid) || StringUtils.containsWhitespace(appid) ||
existsTable(appid) || client == null) {
return false;
}
try {
String table = getTableNameForAppid(appid);
client.execute("CREATE KEYSPACE IF NOT EXISTS " + DBNAME +
" WITH replication = {'class': 'SimpleStrategy', 'replication_factor': " + REPLICATION + "};");
client.execute("USE " + DBNAME + ";");
client.execute("CREATE TABLE IF NOT EXISTS " + table + " (id text PRIMARY KEY, json text);");
logger.info("Created Cassandra table '{}'.", table);
} catch (Exception e) {
logger.error(null, e);
return false;
}
return true;
}
示例11: create
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
/**
* Creates a session and ensures schema if configured. Closes the cluster and session if any
* exception occurred.
*/
@Override public Session create(Cassandra3Storage cassandra) {
Closer closer = Closer.create();
try {
Cluster cluster = closer.register(buildCluster(cassandra));
cluster.register(new QueryLogger.Builder().build());
Session session;
if (cassandra.ensureSchema) {
session = closer.register(cluster.connect());
Schema.ensureExists(cassandra.keyspace, session);
session.execute("USE " + cassandra.keyspace);
} else {
session = cluster.connect(cassandra.keyspace);
}
initializeUDTs(session);
return session;
} catch (RuntimeException e) {
try {
closer.close();
} catch (IOException ignored) {
}
throw e;
}
}
示例12: create
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
/**
* Creates a session and ensures schema if configured. Closes the cluster and session if any
* exception occurred.
*/
@Override public Session create(CassandraStorage cassandra) {
Closer closer = Closer.create();
try {
Cluster cluster = closer.register(buildCluster(cassandra));
cluster.register(new QueryLogger.Builder().build());
if (cassandra.ensureSchema) {
Session session = closer.register(cluster.connect());
Schema.ensureExists(cassandra.keyspace, session);
session.execute("USE " + cassandra.keyspace);
return session;
} else {
return cluster.connect(cassandra.keyspace);
}
} catch (RuntimeException e) {
try {
closer.close();
} catch (IOException ignored) {
}
throw e;
}
}
示例13: testNoDelayOnPreparedStatementWhenIgnoreOnPrepareIsFalse
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
@Test
public void testNoDelayOnPreparedStatementWhenIgnoreOnPrepareIsFalse() throws Exception {
Prime prime =
PrimeDsl.when("select * from table where c1=?")
.then(noRows())
.delay(2, TimeUnit.SECONDS)
.ignoreOnPrepare()
.build();
HttpTestResponse response = server.prime(prime.getPrimedRequest());
assertNotNull(response);
RequestPrime responseQuery = om.readValue(response.body, RequestPrime.class);
assertThat(responseQuery).isEqualTo(prime.getPrimedRequest());
String contactPoint = HttpTestUtil.getContactPointString(server.getCluster(), 0);
try (com.datastax.driver.core.Cluster cluster =
defaultBuilder().addContactPoint(contactPoint).build()) {
Session session = cluster.connect();
long start = System.currentTimeMillis();
PreparedStatement prepared = session.prepare("select * from table where c1=?");
long duration = System.currentTimeMillis() - start;
// should not have applied delay to prepare.
assertThat(duration).isLessThan(2000);
start = System.currentTimeMillis();
session.execute(prepared.bind());
duration = System.currentTimeMillis() - start;
// should have taken longer than 2 seconds as delay is applied to execute.
assertThat(duration).isGreaterThan(2000);
}
}
示例14: intiateKernelHiveManager
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
@Override
public void intiateKernelHiveManager() {
// try {
Session session;
Cluster cluster;
cluster = Cluster.builder().addContactPoint("127.0.0.1").build();
session = cluster.connect();
session.execute("CREATE KEYSPACE " + DATABASE + " WITH replication "
+ "= {'class':'SimpleStrategy', 'replication_factor':3};");
session.execute("CREATE TABLE " + DATABASE + "." + MAIN_TABLE + " (" + COL_ID + " bigint PRIMARY KEY,"
+ COL_DESC + " text," + COL_DATA + " blob" + ");");
}
示例15: prepareAndQuery
import com.datastax.driver.core.Session; //导入方法依赖的package包/类
private ResultSet prepareAndQuery() throws Exception {
try (com.datastax.driver.core.Cluster driverCluster =
defaultBuilder(server.getCluster())
.withRetryPolicy(FallthroughRetryPolicy.INSTANCE)
.build()) {
Session session = driverCluster.connect();
PreparedStatement prepared = session.prepare(query);
return session.execute(prepared.bind());
}
}