NullNode (hibernate-jdk11 5.4.12.Final API)

java.lang.Object
- antlr.BaseAST
- - antlr.CommonAST
  - - org.hibernate.hql.internal.ast.tree.Node
    - - org.hibernate.hql.internal.ast.tree.SqlNode
      - org.hibernate.hql.internal.ast.tree.HqlSqlWalkerNode
        
        org.hibernate.hql.internal.ast.tree.AbstractSelectExpression
        
        org.hibernate.hql.internal.ast.tree.NullNode

所有已实现的接口:

antlr.collections.AST, Serializable, InitializeableNode, SelectExpression
```
public class NullNode
extends AbstractSelectExpression
```
作者:

Andrea Boriero

另请参阅:

序列化表格

字段概要
- 从类继承的字段 antlr.BaseAST
  down, right

构造器概要

构造器
构造器说明

NullNode()

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`Type`	`getDataType()`	Returns the data type of the select expression.
`String`	`getRenderText(SessionFactoryImplementor sessionFactory)`	Retrieve the text to be used for rendering this particular node.
`Object`	`getValue()`
`void`	`setScalarColumnText(int i)`	Appends AST nodes that represent the columns after the current AST node.

从类继承的方法 org.hibernate.hql.internal.ast.tree.AbstractSelectExpression
getAlias, getFromElement, getScalarColumnIndex, isConstructor, isReturnableEntity, isScalar, setAlias, setScalarColumn

从类继承的方法 org.hibernate.hql.internal.ast.tree.HqlSqlWalkerNode
getAliasGenerator, getASTFactory, getSessionFactoryHelper, getWalker, initialize

从类继承的方法 org.hibernate.hql.internal.ast.tree.SqlNode
getOriginalText, setDataType, setText

从类继承的方法 org.hibernate.hql.internal.ast.tree.Node
getColumn, getFilename, getLine, getTextLength, initialize, initialize

从类继承的方法 antlr.CommonAST
getText, getType, initialize, setType

从类继承的方法 antlr.BaseAST
addChild, decode, encode, equals, equalsList, equalsListPartial, equalsTree, equalsTreePartial, findAll, findAllPartial, getFirstChild, getNextSibling, getNumberOfChildren, getTokenNames, removeChildren, setFirstChild, setNextSibling, setVerboseStringConversion, toString, toStringList, toStringTree, xmlSerialize, xmlSerializeNode, xmlSerializeRootClose, xmlSerializeRootOpen

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

从接口继承的方法 org.hibernate.hql.internal.ast.tree.SelectExpression
setText

- 构造器详细资料
  - NullNode
```
public NullNode()
```
- 方法详细资料
  - getDataType
```
public Type getDataType()
```
    从接口复制的说明: SelectExpression
    
    Returns the data type of the select expression.
    
    指定者:
    
    getDataType 在接口中 SelectExpression
    
    覆盖:
    
    getDataType 在类中 SqlNode
    
    返回:
    
    The data type of the select expression.
  - setScalarColumnText
```
public void setScalarColumnText(int i)
                         throws antlr.SemanticException
```
    从接口复制的说明: SelectExpression
    
    Appends AST nodes that represent the columns after the current AST node. (e.g. 'as col0_O_')
    
    参数:
    
    i - The index of the select expression in the projection list.
    
    抛出:
    
    antlr.SemanticException - if a semantic error occurs
  - getValue
```
public Object getValue()
```
  - getRenderText
```
public String getRenderText(SessionFactoryImplementor sessionFactory)
```
    从类复制的说明: Node
    
    Retrieve the text to be used for rendering this particular node.
    
    覆盖:
    
    getRenderText 在类中 Node
    
    参数:
    
    sessionFactory - The session factory
    
    返回:
    
    The text to use for rendering