Java ColumnFamilyDefinition.addColumnDefinition方法代码示例

import me.prettyprint.hector.api.ddl.ColumnFamilyDefinition; //导入方法依赖的package包/类
/** Creates the keyspace. */
private void createKeyspace(Cluster cluster) {
	ColumnFamilyDefinition cfDef = HFactory.createColumnFamilyDefinition(
			KEYSPACE_NAME, COLUMN_FAMILY_NAME, ComparatorType.BYTESTYPE);
	cfDef.setGcGraceSeconds(1);
	cfDef.setCompactionStrategy("LeveledCompactionStrategy");

	BasicColumnDefinition column = new BasicColumnDefinition();
	column.setName(StringSerializer.get().toByteBuffer(COLUMN_NAME));
	column.setValidationClass(ComparatorType.BYTESTYPE.getClassName());
	cfDef.addColumnDefinition(column);

	KeyspaceDefinition newKeyspace = HFactory.createKeyspaceDefinition(
			KEYSPACE_NAME, ThriftKsDef.DEF_STRATEGY_CLASS, 1,
			Arrays.asList(cfDef));
	cluster.addKeyspace(newKeyspace, true);
}
 

import me.prettyprint.hector.api.ddl.ColumnFamilyDefinition; //导入方法依赖的package包/类
private static void createLinksTable() {
	// column family l
	final String CF_LINKS = "l";
	final String QF_URL = "u";

	ColumnFamilyDefinition cfLinks = HFactory.createColumnFamilyDefinition(
			LINKS, CF_LINKS, ComparatorType.UTF8TYPE);
	cfLinks.setKeyValidationClass(ComparatorType.UTF8TYPE.getTypeName());

	List<ColumnDefinition> linksMetaData = new ArrayList<ColumnDefinition>();

	BasicColumnDefinition twLinks = new BasicColumnDefinition();
	twLinks.setName(StringSerializer.get().toByteBuffer(QF_URL));
	twLinks.setValidationClass(ComparatorType.UTF8TYPE.getClassName());
	linksMetaData.add(twLinks);
	cfLinks.addColumnDefinition(twLinks);

	List<ColumnFamilyDefinition> cfDefs = new ArrayList<ColumnFamilyDefinition>();
	cfDefs.add(cfLinks);

	KeyspaceDefinition linksDef = HFactory.createKeyspaceDefinition(LINKS,
			SIMPLESTRATEGY, replFactor, cfDefs);

	cluster.addKeyspace(linksDef);
}
 

import me.prettyprint.hector.api.ddl.ColumnFamilyDefinition; //导入方法依赖的package包/类
@Override
public void createRequiredSchemaEntities() throws DataAccessLayerException {
	final String keyspace_name = _keyspace.getKeyspaceName();
	final KeyspaceDefinition ksdef = _factory.getCluster().describeKeyspace(keyspace_name);

	if (!hasColumnFamily(ksdef, _cf_name)) {

		final ColumnFamilyDefinition cfDef = HFactory.createColumnFamilyDefinition(keyspace_name, _cf_name);
		final Map<String, String> compressionOptions = new HashMap<String, String>();
		compressionOptions.put("sstable_compression", "SnappyCompressor");
		cfDef.setCompressionOptions(compressionOptions);
		
		cfDef.setColumnType(ColumnType.STANDARD);
		cfDef.setKeyValidationClass(ComparatorType.BYTESTYPE.getClassName());
		cfDef.setDefaultValidationClass(ComparatorType.BYTESTYPE.getClassName());
		cfDef.setCompactionStrategy("LeveledCompactionStrategy");

		if (_isBidirectional) {

			BasicColumnDefinition colDef = new BasicColumnDefinition();
			colDef.setName(BytesArraySerializer.get().toByteBuffer(COLUMN_NAME));
			colDef.setValidationClass(ComparatorType.BYTESTYPE.getClassName());
			colDef.setIndexType(ColumnIndexType.KEYS);
			colDef.setIndexName(_cf_name + "_val_idx");

			cfDef.addColumnDefinition(colDef);
		}

		_factory.getCluster().addColumnFamily(new ThriftCfDef(cfDef), true);
	}
}
 

import me.prettyprint.hector.api.ddl.ColumnFamilyDefinition; //导入方法依赖的package包/类
private static void createTweetsTable() {

		final String QF_ID = "id";

		// Column Family tweets
		final String CF_TWEET = "t";
		final String QF_TEXT = "txt";

		ColumnFamilyDefinition cfTweet = HFactory.createColumnFamilyDefinition(
				TWEETS, CF_TWEET, ComparatorType.UTF8TYPE);
		cfTweet.setKeyValidationClass(ComparatorType.LONGTYPE.getTypeName());

		List<ColumnDefinition> tweetMetaData = new ArrayList<ColumnDefinition>();

		BasicColumnDefinition t_txt = new BasicColumnDefinition();
		t_txt.setName(StringSerializer.get().toByteBuffer(QF_TEXT));
		t_txt.setValidationClass(ComparatorType.UTF8TYPE.getClassName());
		tweetMetaData.add(t_txt);
		cfTweet.addColumnDefinition(t_txt);

		List<ColumnFamilyDefinition> cfDefs = new ArrayList<ColumnFamilyDefinition>();
		cfDefs.add(cfTweet);

		KeyspaceDefinition tweetsDef = HFactory.createKeyspaceDefinition(
				TWEETS, SIMPLESTRATEGY, replFactor, cfDefs);

		cluster.addKeyspace(tweetsDef);
	}
 

import me.prettyprint.hector.api.ddl.ColumnFamilyDefinition; //导入方法依赖的package包/类
/**
 * Creates a column family definition.
 * 
 * @param cfName the column family name.
 * @param indexedCols names of columns that will be indexed.
 * @param keyComp the key comparator.
 * @param valueValidationClass the value validation class.
 * @param compositeCol a flag that indicates if columns are composite.
 * @return the column family definition.
 */
protected ColumnFamilyDefinition createCF(
		final String cfName,
		final List<byte[]> indexedCols,
		final ComparatorType keyComp,
		final ComparatorType valueValidationClass,
		final boolean compositeCol) {

	final ColumnFamilyDefinition cfdef = HFactory.createColumnFamilyDefinition(
			_dataAccessLayerFactory.getKeyspaceName(), 
			cfName, 
			compositeCol
				? ComparatorType.COMPOSITETYPE
				: ComparatorType.BYTESTYPE);
	cfdef.setKeyspaceName(_dataAccessLayerFactory.getKeyspaceName());
	cfdef.setColumnType(ColumnType.STANDARD);
	cfdef.setCompactionStrategy("LeveledCompactionStrategy");

	if (compositeCol) {
		cfdef.setComparatorTypeAlias("(BytesType, BytesType, BytesType)");
	}

	for (byte[] col : indexedCols) {
		final String indexColumnFamilyName = "index_" + cfName + "_" + Arrays.hashCode(col);
		try {
			_dataAccessLayerFactory.getCluster().dropColumnFamily(
					_dataAccessLayerFactory.getKeyspaceName(),
					indexColumnFamilyName,
					true);
		} catch (HInvalidRequestException ignore) {
			// Nothing to be done here...
		}
		cfdef.addColumnDefinition(createCDef(col, valueValidationClass.getClassName(), indexColumnFamilyName));
	}

	cfdef.setKeyValidationClass(keyComp.getClassName());
	cfdef.setDefaultValidationClass(valueValidationClass.getClassName());
	cfdef.setCompressionOptions(_compressionOptions);

	return new ThriftCfDef(cfdef);
}