Field Detail

• filter

  protected Filter filter

• targetReplicaId

  protected int targetReplicaId

• consistency

  protected Consistency consistency

Constructor Detail

• Query

  public Query()

Method Detail

• getFilter

  public Filter getFilter()

  Returns:

  Filter

• setFilter

  public Query setFilter(Filter filter)

  Apply the specified server-side filter when performing the Query. Only Filter.filterKeyValue(Cell) is called AFTER all tests for ttl, column match, deletes and max versions have been run.

  Parameters:

  filter - filter to run on the server

  Returns:

  this for invocation chaining

• setAuthorizations

  public Query setAuthorizations(org.apache.hadoop.hbase.security.visibility.Authorizations authorizations)

  Sets the authorizations to be used by this Query

  Parameters:

  authorizations -

• getAuthorizations

  public org.apache.hadoop.hbase.security.visibility.Authorizations getAuthorizations()
                                                                               throws org.apache.hadoop.hbase.exceptions.DeserializationException

  Returns:

  The authorizations this Query is associated with.

  Throws:

  org.apache.hadoop.hbase.exceptions.DeserializationException

• getACL

  public byte[] getACL()

  Returns:

  The serialized ACL for this operation, or null if none

• setACL

  public Query setACL(String user,
             org.apache.hadoop.hbase.security.access.Permission perms)

  Parameters:

  user - User short name

  perms - Permissions for the user

• setACL

  public Query setACL(Map<String,org.apache.hadoop.hbase.security.access.Permission> perms)

  Parameters:

  perms - A map of permissions for a user or users

• getConsistency

  public Consistency getConsistency()

  Returns the consistency level for this operation

  Returns:

  the consistency level

• setConsistency

  public Query setConsistency(Consistency consistency)

  Sets the consistency level for this operation

  Parameters:

  consistency - the consistency level

• setReplicaId

  public Query setReplicaId(int Id)

  Specify region replica id where Query will fetch data from. Use this together with setConsistency(Consistency) passing Consistency.TIMELINE to read data from a specific replicaId.
  Expert: This is an advanced API exposed. Only use it if you know what you are doing

  Parameters:

  Id -

• getReplicaId

  public int getReplicaId()

  Returns region replica id where Query will fetch data from.

  Returns:

  region replica id or -1 if not set.

• setIsolationLevel

  public Query setIsolationLevel(IsolationLevel level)

  Set the isolation level for this query. If the isolation level is set to READ_UNCOMMITTED, then this query will return data from committed and uncommitted transactions. If the isolation level is set to READ_COMMITTED, then this query will return data from committed transactions only. If a isolation level is not explicitly set on a Query, then it is assumed to be READ_COMMITTED.

  Parameters:

  level - IsolationLevel for this query

• getIsolationLevel

  public IsolationLevel getIsolationLevel()

  Returns:

  The isolation level of this query. If no isolation level was set for this query object, then it returns READ_COMMITTED.