ColumnInformation (hibernate-jdk11 5.4.12.Final API)

所有已知实现类:

ColumnInformationImpl
```
public interface ColumnInformation
```
Provides access to information about existing table columns

作者:

Christoph Sturm, Steve Ebersole

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`Identifier`	`getColumnIdentifier()`	The simple (not qualified) column name.
`int`	`getColumnSize()`	The column size (length).
`TableInformation`	`getContainingTableInformation()`	Access to the containing table.
`int`	`getDecimalDigits()`	The precision, for numeric types
`TruthValue`	`getNullable()`	Is the column nullable.
`int`	`getTypeCode()`	The JDBC type-code.
`String`	`getTypeName()`	The database specific type name.

- 方法详细资料
  - getContainingTableInformation
```
TableInformation getContainingTableInformation()
```
    Access to the containing table.
    
    返回:
    
    The containing table information
  - getColumnIdentifier
```
Identifier getColumnIdentifier()
```
    The simple (not qualified) column name.
    
    返回:
    
    The column simple identifier.
  - getNullable
```
TruthValue getNullable()
```
    Is the column nullable. The database is allowed to report unknown, hence the use of TruthValue
    
    返回:
    
    nullability.
  - getTypeCode
```
int getTypeCode()
```
    The JDBC type-code.
    
    返回:
    
    JDBC type-code
  - getTypeName
```
String getTypeName()
```
    The database specific type name.
    
    返回:
    
    Type name
  - getColumnSize
```
int getColumnSize()
```
    The column size (length).
    
    返回:
    
    The column length
  - getDecimalDigits
```
int getDecimalDigits()
```
    The precision, for numeric types
    
    返回:
    
    The numeric precision