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

类 TablesContext

java.lang.Object

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

public final class TablesContext
extends Object

Tables context.

构造器概要

构造器

构造器和说明
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)

方法概要

限定符和类型	方法和说明
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.

从类继承的方法 java.lang.Object

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

构造器详细资料

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)

方法详细资料

getTableNames

public Collection<String> getTableNames()

Get table names.

返回:

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.

参数:

columns - column segment collection

schema - schema meta data

返回:

expression table name map

findTableNamesByColumnProjection

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

Find expression table name map by column projection.

参数:

columns - column segment collection

schema - schema meta data

返回:

expression table name map

getDatabaseName

public Optional<String> getDatabaseName()

Get database name.

返回:

database name

getSchemaName

public Optional<String> getSchemaName()

Get schema name.

返回:

schema name