AbstractNullnessCheckNode (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.UnaryLogicOperatorNode
        
        org.hibernate.hql.internal.ast.tree.AbstractNullnessCheckNode

所有已实现的接口:

antlr.collections.AST, Serializable, InitializeableNode, OperatorNode, SelectExpression, UnaryOperatorNode

直接已知子类:

IsNotNullLogicOperatorNode, IsNullLogicOperatorNode
```
public abstract class AbstractNullnessCheckNode
extends UnaryLogicOperatorNode
```
Base class for nodes dealing 'is null' and 'is not null' operators.
todo : a good deal of this is copied from BinaryLogicOperatorNode; look at consolidating these code fragments

作者:

Steve Ebersole

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

AbstractNullnessCheckNode()

方法概要

所有方法实例方法抽象方法具体方法
修饰符和类型	方法	说明
`protected abstract String`	`getExpansionConnectorText()`	When (if) we need to expand a row value constructor, what is the text of the connector to use between the expansion fragments.
`protected abstract int`	`getExpansionConnectorType()`	When (if) we need to expand a row value constructor, what is the type of connector to use between the expansion fragments.
`void`	`initialize()`	Called by the tree walker during hql-sql semantic analysis after the operator sub-tree is completely built.

从类继承的方法 org.hibernate.hql.internal.ast.tree.UnaryLogicOperatorNode
getDataType, getOperand, setScalarColumnText

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, getRenderText, 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
  - AbstractNullnessCheckNode
```
public AbstractNullnessCheckNode()
```
- 方法详细资料
  - initialize
```
public void initialize()
```
    从接口复制的说明: OperatorNode
    
    Called by the tree walker during hql-sql semantic analysis after the operator sub-tree is completely built.
    
    指定者:
    
    initialize 在接口中 OperatorNode
    
    覆盖:
    
    initialize 在类中 UnaryLogicOperatorNode
  - getExpansionConnectorType
```
protected abstract int getExpansionConnectorType()
```
    When (if) we need to expand a row value constructor, what is the type of connector to use between the expansion fragments.
    
    返回:
    
    The expansion connector type.
  - getExpansionConnectorText
```
protected abstract String getExpansionConnectorText()
```
    When (if) we need to expand a row value constructor, what is the text of the connector to use between the expansion fragments.
    
    返回:
    
    The expansion connector text.