CloneSchema (Apache Calcite API)

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

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

Description

CloneSchema(SchemaPlus sourceSchema)

Creates a CloneSchema.
Method Summary

Modifier and Type

Method

Description

static <T> Table

createCloneTable(JavaTypeFactory typeFactory, RelProtoDataType protoRowType, @Nullable List<org.apache.calcite.avatica.ColumnMetaData.Rep> repList, Enumerable<T> source)

Deprecated.

static <T> Table

createCloneTable(JavaTypeFactory typeFactory, RelProtoDataType protoRowType, List<RelCollation> collations, @Nullable List<org.apache.calcite.avatica.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
getExpression, getFunctionMultimap, getFunctionNames, getFunctions, getSubSchema, getSubSchemaMap, getSubSchemaNames, getTable, getTableNames, getType, getTypeMap, getTypeNames, isMutable, snapshot

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- CloneSchema
  
  public CloneSchema(SchemaPlus sourceSchema)
  
  Creates a CloneSchema.
  
  Parameters:
  
  sourceSchema - JDBC data source
Method Details
- 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
  
  @Deprecated public static <T> Table createCloneTable(JavaTypeFactory typeFactory, RelProtoDataType protoRowType, @Nullable List<org.apache.calcite.avatica.ColumnMetaData.Rep> repList, Enumerable<T> source)
  
  Deprecated.
- createCloneTable
  
  public static <T> Table createCloneTable(JavaTypeFactory typeFactory, RelProtoDataType protoRowType, List<RelCollation> collations, @Nullable List<org.apache.calcite.avatica.ColumnMetaData.Rep> repList, Enumerable<T> source)