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<org.apache.shardingsphere.sql.parser.sql.common.segment.generic.table.SimpleTableSegment> tableSegments)
TablesContext(org.apache.shardingsphere.sql.parser.sql.common.segment.generic.table.SimpleTableSegment tableSegment)

方法概要

限定符和类型	方法和说明
Map<String,String>	findTableName(Collection<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.column.ColumnSegment> columns, ShardingSphereSchema schema) Find table name.
Optional<String>	findTableName(ColumnProjection column, ShardingSphereSchema schema) Find table name.
Optional<String>	findTableNameFromSQL(String tableNameOrAlias) Find table name from SQL.
Collection<org.apache.shardingsphere.sql.parser.sql.common.segment.generic.table.SimpleTableSegment>	getAllUniqueTables() Get all unique table segments.
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)

TablesContext

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

方法详细资料

getTableNames

public Collection<String> getTableNames()

Get table names.

返回:

table names

getAllUniqueTables

public Collection<org.apache.shardingsphere.sql.parser.sql.common.segment.generic.table.SimpleTableSegment> getAllUniqueTables()

Get all unique table segments.

返回:

all unique table segments

findTableName

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

Find table name.

参数:

columns - column segment collection

schema - schema meta data

返回:

table name map

findTableName

public Optional<String> findTableName(ColumnProjection column,
                                      ShardingSphereSchema schema)

Find table name.

参数:

column - column projection

schema - schema meta data

返回:

table name

findTableNameFromSQL

public Optional<String> findTableNameFromSQL(String tableNameOrAlias)

Find table name from SQL.

参数:

tableNameOrAlias - table name or alias

返回:

table name

getSchemaName

public Optional<String> getSchemaName()

Get schema name.

返回:

schema name