Package org.apache.shardingsphere.infra.binder.segment.table

Class TablesContext

java.lang.Object

org.apache.shardingsphere.infra.binder.segment.table.TablesContext

public final class TablesContext
extends Object

Tables context.

Constructor Summary

Constructors

Constructor	Description
TablesContext(Collection<? extends org.apache.shardingsphere.sql.parser.sql.common.segment.generic.table.TableSegment> tableSegments, Map<Integer,SelectStatementContext> subqueryContexts, DatabaseType databaseType)
TablesContext(Collection<org.apache.shardingsphere.sql.parser.sql.common.segment.generic.table.SimpleTableSegment> tableSegments, DatabaseType databaseType)
TablesContext(org.apache.shardingsphere.sql.parser.sql.common.segment.generic.table.SimpleTableSegment tableSegment, DatabaseType databaseType)

Method Summary

Modifier and Type	Method	Description
Map<String,String>	findTableNamesByColumnProjection(Collection<ColumnProjection> columns, ShardingSphereSchema schema)	Find expression table name map by column projection.
Map<String,String>	findTableNamesByColumnSegment(Collection<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.column.ColumnSegment> columns, ShardingSphereSchema schema)	Find expression table name map by column segment.
Optional<String>	getDatabaseName()	Get database name.
Optional<String>	getSchemaName()	Get schema name.
Collection<String>	getTableNames()	Get table names.

Methods inherited from class java.lang.Object

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

Constructor Detail

TablesContext

public TablesContext(org.apache.shardingsphere.sql.parser.sql.common.segment.generic.table.SimpleTableSegment tableSegment,
                     DatabaseType databaseType)

TablesContext

public TablesContext(Collection<org.apache.shardingsphere.sql.parser.sql.common.segment.generic.table.SimpleTableSegment> tableSegments,
                     DatabaseType databaseType)

TablesContext

public TablesContext(Collection<? extends org.apache.shardingsphere.sql.parser.sql.common.segment.generic.table.TableSegment> tableSegments,
                     Map<Integer,SelectStatementContext> subqueryContexts,
                     DatabaseType databaseType)

Method Detail

getTableNames

public Collection<String> getTableNames()

Get table names.

Returns:

table names

findTableNamesByColumnSegment

public Map<String,String> findTableNamesByColumnSegment(Collection<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.column.ColumnSegment> columns,
                                                              ShardingSphereSchema schema)

Find expression table name map by column segment.

Parameters:

columns - column segment collection

schema - schema meta data

Returns:

expression table name map

findTableNamesByColumnProjection

public Map<String,String> findTableNamesByColumnProjection(Collection<ColumnProjection> columns,
                                                                 ShardingSphereSchema schema)

Find expression table name map by column projection.

Parameters:

columns - column segment collection

schema - schema meta data

Returns:

expression table name map

getDatabaseName

public Optional<String> getDatabaseName()

Get database name.

Returns:

database name

getSchemaName

public Optional<String> getSchemaName()

Get schema name.

Returns:

schema name