org.apache.calcite.adapter.cassandra

类 CassandraTable

java.lang.Object

org.apache.calcite.schema.impl.AbstractTable

org.apache.calcite.adapter.java.AbstractQueryableTable

org.apache.calcite.adapter.cassandra.CassandraTable

所有已实现的接口:

org.apache.calcite.schema.QueryableTable, org.apache.calcite.schema.Table, org.apache.calcite.schema.TranslatableTable, org.apache.calcite.schema.Wrapper

public class CassandraTable
extends org.apache.calcite.adapter.java.AbstractQueryableTable
implements org.apache.calcite.schema.TranslatableTable

Table based on a Cassandra column family.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	CassandraTable.CassandraQueryable<T> Implementation of Queryable based on a CassandraTable.

字段概要

从类继承的字段 org.apache.calcite.adapter.java.AbstractQueryableTable

elementType

构造器概要

构造器

构造器和说明
CassandraTable(CassandraSchema schema, String columnFamily) 已过时。
CassandraTable(CassandraSchema schema, String columnFamily, boolean isView) 已过时。
CassandraTable(CassandraSchema schema, String keyspace, String columnFamily)
CassandraTable(CassandraSchema schema, String keyspace, String columnFamily, boolean isView)

方法概要

限定符和类型	方法和说明
<T> org.apache.calcite.linq4j.Queryable<T>	asQueryable(org.apache.calcite.linq4j.QueryProvider queryProvider, org.apache.calcite.schema.SchemaPlus schema, String tableName)
List<String>	getClusteringKeys()
List<org.apache.calcite.rel.RelFieldCollation>	getClusteringOrder()
List<String>	getPartitionKeys()
org.apache.calcite.rel.type.RelDataType	getRowType(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory)
org.apache.calcite.linq4j.Enumerable<Object>	query(com.datastax.oss.driver.api.core.CqlSession session)
org.apache.calcite.linq4j.Enumerable<Object>	query(com.datastax.oss.driver.api.core.CqlSession session, List<Map.Entry<String,Class>> fields, List<Map.Entry<String,String>> selectFields, List<String> predicates, List<String> order, Integer offset, Integer fetch) Executes a CQL query on the underlying table.
org.apache.calcite.rel.RelNode	toRel(org.apache.calcite.plan.RelOptTable.ToRelContext context, org.apache.calcite.plan.RelOptTable relOptTable)
String	toString()

从类继承的方法 org.apache.calcite.adapter.java.AbstractQueryableTable

getElementType, getExpression

从类继承的方法 org.apache.calcite.schema.impl.AbstractTable

getJdbcTableType, getStatistic, isRolledUp, rolledUpColumnValidInsideAgg, unwrap

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

从接口继承的方法 org.apache.calcite.schema.Table

getJdbcTableType, getStatistic, isRolledUp, rolledUpColumnValidInsideAgg

从接口继承的方法 org.apache.calcite.schema.Wrapper

maybeUnwrap, unwrapOrThrow

构造器详细资料

CassandraTable

@Deprecated
public CassandraTable(CassandraSchema schema,
                                  String columnFamily,
                                  boolean isView)

已过时。

CassandraTable

public CassandraTable(CassandraSchema schema,
                      String keyspace,
                      String columnFamily,
                      boolean isView)

CassandraTable

@Deprecated
public CassandraTable(CassandraSchema schema,
                                  String columnFamily)

已过时。

CassandraTable

public CassandraTable(CassandraSchema schema,
                      String keyspace,
                      String columnFamily)

方法详细资料

toString

public String toString()

覆盖:

toString 在类中 Object

getRowType

public org.apache.calcite.rel.type.RelDataType getRowType(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory)

指定者:

getRowType 在接口中 org.apache.calcite.schema.Table

getPartitionKeys

public List<String> getPartitionKeys()

getClusteringKeys

public List<String> getClusteringKeys()

getClusteringOrder

public List<org.apache.calcite.rel.RelFieldCollation> getClusteringOrder()

query

public org.apache.calcite.linq4j.Enumerable<Object> query(com.datastax.oss.driver.api.core.CqlSession session)

query

public org.apache.calcite.linq4j.Enumerable<Object> query(com.datastax.oss.driver.api.core.CqlSession session,
                                                          List<Map.Entry<String,Class>> fields,
                                                          List<Map.Entry<String,String>> selectFields,
                                                          List<String> predicates,
                                                          List<String> order,
                                                          Integer offset,
                                                          Integer fetch)

Executes a CQL query on the underlying table.

参数:

session - Cassandra session

fields - List of fields to project

predicates - A list of predicates which should be used in the query

返回:

Enumerator of results

asQueryable

public <T> org.apache.calcite.linq4j.Queryable<T> asQueryable(org.apache.calcite.linq4j.QueryProvider queryProvider,
                                                              org.apache.calcite.schema.SchemaPlus schema,
                                                              String tableName)

指定者:

asQueryable 在接口中 org.apache.calcite.schema.QueryableTable

toRel

public org.apache.calcite.rel.RelNode toRel(org.apache.calcite.plan.RelOptTable.ToRelContext context,
                                            org.apache.calcite.plan.RelOptTable relOptTable)

指定者:

toRel 在接口中 org.apache.calcite.schema.TranslatableTable