本文整理汇总了Java中org.apache.cassandra.service.StorageProxy.cas方法的典型用法代码示例。如果您正苦于以下问题：Java StorageProxy.cas方法的具体用法？Java StorageProxy.cas怎么用？Java StorageProxy.cas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org.apache.cassandra.service.StorageProxy的用法示例。
在下文中一共展示了StorageProxy.cas方法的9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: executeWithCondition
import org.apache.cassandra.service.StorageProxy; //导入方法依赖的package包/类
public ResultMessage executeWithCondition(QueryState queryState, QueryOptions options)
throws RequestExecutionException, RequestValidationException
{
List<ByteBuffer> keys = buildPartitionKeyNames(options);
// We don't support IN for CAS operation so far
if (keys.size() > 1)
throw new InvalidRequestException("IN on the partition key is not supported with conditional updates");
ByteBuffer key = keys.get(0);
long now = options.getTimestamp(queryState);
Composite prefix = createClusteringPrefix(options);
CQL3CasRequest request = new CQL3CasRequest(cfm, key, false);
addConditions(prefix, request, options);
request.addRowUpdate(prefix, this, options, now);
ColumnFamily result = StorageProxy.cas(keyspace(),
columnFamily(),
key,
request,
options.getSerialConsistency(),
options.getConsistency(),
queryState.getClientState());
return new ResultMessage.Rows(buildCasResultSet(key, result, options));
}
示例2: executeWithCondition
import org.apache.cassandra.service.StorageProxy; //导入方法依赖的package包/类
public ResultMessage executeWithCondition(QueryState queryState, QueryOptions options)
throws RequestExecutionException, RequestValidationException
{
CQL3CasRequest request = makeCasRequest(queryState, options);
try (RowIterator result = StorageProxy.cas(keyspace(),
columnFamily(),
request.key,
request,
options.getSerialConsistency(),
options.getConsistency(),
queryState.getClientState()))
{
return new ResultMessage.Rows(buildCasResultSet(result, options));
}
}
示例3: executeWithCondition
import org.apache.cassandra.service.StorageProxy; //导入方法依赖的package包/类
public ResultMessage executeWithCondition(QueryState queryState, QueryOptions options)
throws RequestExecutionException, RequestValidationException
{
List<ByteBuffer> keys = buildPartitionKeyNames(options);
// We don't support IN for CAS operation so far
if (keys.size() > 1)
throw new InvalidRequestException("IN on the partition key is not supported with conditional updates");
ByteBuffer key = keys.get(0);
long now = options.getTimestamp(queryState);
Composite prefix = createClusteringPrefix(options);
CQL3CasRequest request = new CQL3CasRequest(cfm, key, false);
addConditions(prefix, request, options);
request.addRowUpdate(prefix, this, options, now);
ColumnFamily result = StorageProxy.cas(keyspace(),
columnFamily(),
key,
request,
options.getSerialConsistency(),
options.getConsistency());
return new ResultMessage.Rows(buildCasResultSet(key, result, options));
}
示例4: executeWithCondition
import org.apache.cassandra.service.StorageProxy; //导入方法依赖的package包/类
public ResultMessage executeWithCondition(QueryState queryState, QueryOptions options)
throws RequestExecutionException, RequestValidationException
{
List<ByteBuffer> variables = options.getValues();
List<ByteBuffer> keys = buildPartitionKeyNames(variables);
// We don't support IN for CAS operation so far
if (keys.size() > 1)
throw new InvalidRequestException("IN on the partition key is not supported with conditional updates");
ByteBuffer key = keys.get(0);
CQL3CasConditions conditions = new CQL3CasConditions(cfm, queryState.getTimestamp());
Composite prefix = createClusteringPrefix(variables);
ColumnFamily updates = ArrayBackedSortedColumns.factory.create(cfm);
addUpdatesAndConditions(key, prefix, updates, conditions, variables, getTimestamp(queryState.getTimestamp(), variables));
ColumnFamily result = StorageProxy.cas(keyspace(),
columnFamily(),
key,
conditions,
updates,
options.getSerialConsistency(),
options.getConsistency());
return new ResultMessage.Rows(buildCasResultSet(key, result));
}
示例5: executeWithCondition
import org.apache.cassandra.service.StorageProxy; //导入方法依赖的package包/类
public ResultMessage executeWithCondition(QueryState queryState, QueryOptions options)
throws RequestExecutionException, RequestValidationException
{
List<ByteBuffer> variables = options.getValues();
List<ByteBuffer> keys = buildPartitionKeyNames(variables);
// We don't support IN for CAS operation so far
if (keys.size() > 1)
throw new InvalidRequestException("IN on the partition key is not supported with conditional updates");
ColumnNameBuilder clusteringPrefix = createClusteringPrefixBuilder(variables);
ByteBuffer key = keys.get(0);
ThriftValidation.validateKey(cfm, key);
UpdateParameters updParams = new UpdateParameters(cfm, variables, queryState.getTimestamp(), getTimeToLive(variables), null);
ColumnFamily updates = updateForKey(key, clusteringPrefix, updParams);
// When building the conditions, we should not use the TTL. It's not useful, and if a very low ttl (1 seconds) is used, it's possible
// for it to expire before actually build the conditions which would break since we would then test for the presence of tombstones.
UpdateParameters condParams = new UpdateParameters(cfm, variables, queryState.getTimestamp(), 0, null);
ColumnFamily expected = buildConditions(key, clusteringPrefix, condParams);
ColumnFamily result = StorageProxy.cas(keyspace(),
columnFamily(),
key,
clusteringPrefix,
expected,
updates,
options.getSerialConsistency(),
options.getConsistency());
return new ResultMessage.Rows(buildCasResultSet(key, result));
}
示例6: executeWithCondition
import org.apache.cassandra.service.StorageProxy; //导入方法依赖的package包/类
public ResultMessage executeWithCondition(QueryState queryState, QueryOptions options)
throws RequestExecutionException, RequestValidationException
{
List<ByteBuffer> variables = options.getValues();
List<ByteBuffer> keys = buildPartitionKeyNames(variables);
// We don't support IN for CAS operation so far
if (keys.size() > 1)
throw new InvalidRequestException("IN on the partition key is not supported with conditional updates");
Composite clusteringPrefix = createClusteringPrefix(variables);
ByteBuffer key = keys.get(0);
ThriftValidation.validateKey(cfm, key);
UpdateParameters updParams = new UpdateParameters(cfm, variables, queryState.getTimestamp(), getTimeToLive(variables), null);
ColumnFamily updates = updateForKey(key, clusteringPrefix, updParams);
// When building the conditions, we should not use the TTL. It's not useful, and if a very low ttl (1 seconds) is used, it's possible
// for it to expire before actually build the conditions which would break since we would then test for the presence of tombstones.
UpdateParameters condParams = new UpdateParameters(cfm, variables, queryState.getTimestamp(), 0, null);
ColumnFamily expected = buildConditions(key, clusteringPrefix, condParams);
ColumnFamily result = StorageProxy.cas(keyspace(),
columnFamily(),
key,
clusteringPrefix,
expected,
updates,
options.getSerialConsistency(),
options.getConsistency());
return new ResultMessage.Rows(buildCasResultSet(key, result));
}
示例7: executeWithConditions
import org.apache.cassandra.service.StorageProxy; //导入方法依赖的package包/类
private ResultMessage executeWithConditions(BatchQueryOptions options, QueryState state)
throws RequestExecutionException, RequestValidationException
{
long now = state.getTimestamp();
ByteBuffer key = null;
String ksName = null;
String cfName = null;
CQL3CasRequest casRequest = null;
Set<ColumnDefinition> columnsWithConditions = new LinkedHashSet<>();
for (int i = 0; i < statements.size(); i++)
{
ModificationStatement statement = statements.get(i);
QueryOptions statementOptions = options.forStatement(i);
long timestamp = attrs.getTimestamp(now, statementOptions);
List<ByteBuffer> pks = statement.buildPartitionKeyNames(statementOptions);
if (pks.size() > 1)
throw new IllegalArgumentException("Batch with conditions cannot span multiple partitions (you cannot use IN on the partition key)");
if (key == null)
{
key = pks.get(0);
ksName = statement.cfm.ksName;
cfName = statement.cfm.cfName;
casRequest = new CQL3CasRequest(statement.cfm, key, true);
}
else if (!key.equals(pks.get(0)))
{
throw new InvalidRequestException("Batch with conditions cannot span multiple partitions");
}
Composite clusteringPrefix = statement.createClusteringPrefix(statementOptions);
if (statement.hasConditions())
{
statement.addConditions(clusteringPrefix, casRequest, statementOptions);
// As soon as we have a ifNotExists, we set columnsWithConditions to null so that everything is in the resultSet
if (statement.hasIfNotExistCondition() || statement.hasIfExistCondition())
columnsWithConditions = null;
else if (columnsWithConditions != null)
Iterables.addAll(columnsWithConditions, statement.getColumnsWithConditions());
}
casRequest.addRowUpdate(clusteringPrefix, statement, statementOptions, timestamp);
}
ColumnFamily result = StorageProxy.cas(ksName, cfName, key, casRequest, options.getSerialConsistency(), options.getConsistency(), state.getClientState());
return new ResultMessage.Rows(ModificationStatement.buildCasResultSet(ksName, key, cfName, result, columnsWithConditions, true, options.forStatement(0)));
}
示例8: executeWithConditions
import org.apache.cassandra.service.StorageProxy; //导入方法依赖的package包/类
private ResultMessage executeWithConditions(BatchQueryOptions options, long now)
throws RequestExecutionException, RequestValidationException
{
ByteBuffer key = null;
String ksName = null;
String cfName = null;
CQL3CasRequest casRequest = null;
Set<ColumnDefinition> columnsWithConditions = new LinkedHashSet<>();
for (int i = 0; i < statements.size(); i++)
{
ModificationStatement statement = statements.get(i);
QueryOptions statementOptions = options.forStatement(i);
long timestamp = attrs.getTimestamp(now, statementOptions);
List<ByteBuffer> pks = statement.buildPartitionKeyNames(statementOptions);
if (pks.size() > 1)
throw new IllegalArgumentException("Batch with conditions cannot span multiple partitions (you cannot use IN on the partition key)");
if (key == null)
{
key = pks.get(0);
ksName = statement.cfm.ksName;
cfName = statement.cfm.cfName;
casRequest = new CQL3CasRequest(statement.cfm, key, true);
}
else if (!key.equals(pks.get(0)))
{
throw new InvalidRequestException("Batch with conditions cannot span multiple partitions");
}
Composite clusteringPrefix = statement.createClusteringPrefix(statementOptions);
if (statement.hasConditions())
{
statement.addConditions(clusteringPrefix, casRequest, statementOptions);
// As soon as we have a ifNotExists, we set columnsWithConditions to null so that everything is in the resultSet
if (statement.hasIfNotExistCondition() || statement.hasIfExistCondition())
columnsWithConditions = null;
else if (columnsWithConditions != null)
Iterables.addAll(columnsWithConditions, statement.getColumnsWithConditions());
}
casRequest.addRowUpdate(clusteringPrefix, statement, statementOptions, timestamp);
}
ColumnFamily result = StorageProxy.cas(ksName, cfName, key, casRequest, options.getSerialConsistency(), options.getConsistency());
return new ResultMessage.Rows(ModificationStatement.buildCasResultSet(ksName, key, cfName, result, columnsWithConditions, true, options.forStatement(0)));
}
示例9: executeWithConditions
import org.apache.cassandra.service.StorageProxy; //导入方法依赖的package包/类
private ResultMessage executeWithConditions(BatchVariables variables, ConsistencyLevel cl, ConsistencyLevel serialCf, long now)
throws RequestExecutionException, RequestValidationException
{
ByteBuffer key = null;
String ksName = null;
String cfName = null;
ColumnFamily updates = null;
CQL3CasConditions conditions = null;
Set<ColumnDefinition> columnsWithConditions = new LinkedHashSet<ColumnDefinition>();
for (int i = 0; i < statements.size(); i++)
{
ModificationStatement statement = statements.get(i);
List<ByteBuffer> statementVariables = variables.getVariablesForStatement(i);
long timestamp = attrs.getTimestamp(now, statementVariables);
List<ByteBuffer> pks = statement.buildPartitionKeyNames(statementVariables);
if (pks.size() > 1)
throw new IllegalArgumentException("Batch with conditions cannot span multiple partitions (you cannot use IN on the partition key)");
if (key == null)
{
key = pks.get(0);
ksName = statement.cfm.ksName;
cfName = statement.cfm.cfName;
conditions = new CQL3CasConditions(statement.cfm, now);
updates = ArrayBackedSortedColumns.factory.create(statement.cfm);
}
else if (!key.equals(pks.get(0)))
{
throw new InvalidRequestException("Batch with conditions cannot span multiple partitions");
}
Composite clusteringPrefix = statement.createClusteringPrefix(statementVariables);
if (statement.hasConditions())
{
statement.addUpdatesAndConditions(key, clusteringPrefix, updates, conditions, statementVariables, timestamp);
// As soon as we have a ifNotExists, we set columnsWithConditions to null so that everything is in the resultSet
if (statement.hasIfNotExistCondition() || statement.hasIfExistCondition())
columnsWithConditions = null;
else if (columnsWithConditions != null)
Iterables.addAll(columnsWithConditions, statement.getColumnsWithConditions());
}
else
{
UpdateParameters params = statement.makeUpdateParameters(Collections.singleton(key), clusteringPrefix, statementVariables, false, cl, now);
statement.addUpdateForKey(updates, key, clusteringPrefix, params);
}
}
ColumnFamily result = StorageProxy.cas(ksName, cfName, key, conditions, updates, serialCf, cl);
return new ResultMessage.Rows(ModificationStatement.buildCasResultSet(ksName, key, cfName, result, columnsWithConditions, true));
}