org.apache.shardingsphere.sql.parser.binder.metadata.schema

类 SchemaMetaData

java.lang.Object

org.apache.shardingsphere.sql.parser.binder.metadata.schema.SchemaMetaData

public final class SchemaMetaData
extends Object

Schema meta data.

构造器概要

构造器

构造器和说明
SchemaMetaData(Map<String,TableMetaData> tables)

方法概要

限定符和类型	方法和说明
boolean	containsColumn(String tableName, String columnName) Judge whether contains column name.
boolean	containsTable(String tableName) Judge contains table from table meta data or not.
TableMetaData	get(String tableName) Get table meta data via table name.
List<String>	getAllColumnNames(String tableName) Get all column names via table.
Collection<String>	getAllTableNames() Get all table names.
void	merge(SchemaMetaData schemaMetaData) Merge schema meta data.
void	put(String tableName, TableMetaData tableMetaData) Add table meta data.
void	remove(String tableName) Remove table meta data.

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

SchemaMetaData

public SchemaMetaData(Map<String,TableMetaData> tables)

方法详细资料

getAllTableNames

public Collection<String> getAllTableNames()

Get all table names.

返回:

all table names

get

public TableMetaData get(String tableName)

Get table meta data via table name.

参数:

tableName - tableName table name

返回:

table mata data

merge

public void merge(SchemaMetaData schemaMetaData)

Merge schema meta data.

参数:

schemaMetaData - schema meta data

put

public void put(String tableName,
                TableMetaData tableMetaData)

Add table meta data.

参数:

tableName - table name

tableMetaData - table meta data

remove

public void remove(String tableName)

Remove table meta data.

参数:

tableName - table name

containsTable

public boolean containsTable(String tableName)

Judge contains table from table meta data or not.

参数:

tableName - table name

返回:

contains table from table meta data or not

containsColumn

public boolean containsColumn(String tableName,
                              String columnName)

Judge whether contains column name.

参数:

tableName - table name

columnName - column name

返回:

contains column name or not

getAllColumnNames

public List<String> getAllColumnNames(String tableName)

Get all column names via table.

参数:

tableName - table name

返回:

column names