org.apache.calcite.adapter.clone

Class CloneSchema

java.lang.Object

org.apache.calcite.schema.impl.AbstractSchema

org.apache.calcite.adapter.clone.CloneSchema

All Implemented Interfaces:

Schema

public class CloneSchema
extends AbstractSchema

Schema that contains in-memory copies of tables from a JDBC schema.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CloneSchema.Factory Schema factory that creates a CloneSchema.

Nested classes/interfaces inherited from interface org.apache.calcite.schema.Schema

Schema.TableType

Constructor Summary

Constructors

Constructor and Description
CloneSchema(SchemaPlus sourceSchema) Creates a CloneSchema.

Method Summary

Methods

Modifier and Type	Method and Description
static <T> Table	createCloneTable(JavaTypeFactory typeFactory, RelProtoDataType protoRowType, List<ColumnMetaData.Rep> repList, Enumerable<T> source)
protected Map<String,Table>	getTableMap() Returns a map of tables in this schema by name.

Methods inherited from class org.apache.calcite.schema.impl.AbstractSchema

contentsHaveChangedSince, getExpression, getFunctionMultimap, getFunctionNames, getFunctions, getSubSchema, getSubSchemaMap, getSubSchemaNames, getTable, getTableNames, isMutable

Methods inherited from class java.lang.Object

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

Constructor Detail

CloneSchema

public CloneSchema(SchemaPlus sourceSchema)

Creates a CloneSchema.

Parameters:

sourceSchema - JDBC data source

Method Detail

getTableMap

protected Map<String,Table> getTableMap()

Description copied from class: AbstractSchema

Returns a map of tables in this schema by name.

The implementations of AbstractSchema.getTableNames() and AbstractSchema.getTable(String) depend on this map. The default implementation of this method returns the empty map. Override this method to change their behavior.

Overrides:

getTableMap in class AbstractSchema

Returns:

Map of tables in this schema by name

createCloneTable

public static <T> Table createCloneTable(JavaTypeFactory typeFactory,
                         RelProtoDataType protoRowType,
                         List<ColumnMetaData.Rep> repList,
                         Enumerable<T> source)