Examples of org.kiji.schema.layout.impl.cassandra.CassandraTableLayoutDatabase

Package org.kiji.schema.layout.impl.cassandra

Examples of org.kiji.schema.layout.impl.cassandra.CassandraTableLayoutDatabase

org.kiji.schema.layout.impl.cassandra.CassandraTableLayoutDatabase

Manages Kiji table layouts using a Cassandra table as a backing store.

The C* primary key is the name of the table, and the row has 3 columns:
timestamp (needs to be explicit in C*);
the layout update, as specified by the user/submitter;
the effective layout after applying the update;
a hash of the effective layout.

Layouts and layout updates are encoded as Kiji cells, using Avro schema hashes, and as TableLayoutDesc Avro records.

A static method, getHColumnDescriptor returns the description of an HColumn that should be used to construct the HTable for the backing store.

    }
    if (!admin.tableExists(mKeyValueTable)) {
      throw new KijiNotInstalledException("Meta Key Value table not installed.", instanceURI);
    }


    mTableLayoutDatabase = new CassandraTableLayoutDatabase(mInstanceURI, admin, schemaTable);
    mTableKeyValueDatabase = new CassandraTableKeyValueDatabase(mInstanceURI, admin);
    final State oldState = mState.getAndSet(State.OPEN);
    Preconditions.checkState(
        oldState == State.UNINITIALIZED,
        "Cannot open MetaTable instance in state %s.", oldState);

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com.datastax.driver.core.ResultSet

org.kiji.schema.avro.TableLayoutDesc

org.kiji.schema.avro.TableLayoutsBackup

org.kiji.schema.cassandra.CassandraTableName

org.kiji.schema.impl.AvroCellEncoder

org.kiji.schema.impl.cassandra.CassandraMetaTable

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