SQLColumnDefault (druid 1.2.26 API)

java.lang.Object
- com.alibaba.druid.sql.ast.SQLObjectImpl
- - com.alibaba.druid.sql.ast.statement.SQLConstraintImpl
  - - com.alibaba.druid.sql.ast.statement.SQLColumnDefault

All Implemented Interfaces:

SQLDbTypedObject, SQLObject, SQLReplaceable, SQLColumnConstraint, SQLConstraint, SQLTableElement
```
public class SQLColumnDefault
extends SQLConstraintImpl
implements SQLColumnConstraint, SQLReplaceable
```

Field Summary
- Fields inherited from class com.alibaba.druid.sql.ast.statement.SQLConstraintImpl
  dbType, enable, hints, rely, validate
- Fields inherited from class com.alibaba.druid.sql.ast.SQLObjectImpl
  attributes, hint, parent, sourceColumn, sourceLine

Constructor Summary

Constructors
Constructor Description

SQLColumnDefault()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`accept0(SQLASTVisitor visitor)`
`SQLColumnDefault`	`clone()`
`SQLExpr`	`getDefaultExpr()`
`boolean`	`replace(SQLExpr expr, SQLExpr target)`
`void`	`setDefaultExpr(SQLExpr defaultExpr)`

Methods inherited from class com.alibaba.druid.sql.ast.statement.SQLConstraintImpl
cloneTo, cloneTo, getComment, getDbType, getEnable, getHints, getName, getRely, getValidate, setComment, setDbType, setEnable, setHints, setName, setName, setRely, setValidate, simplify

Methods inherited from class com.alibaba.druid.sql.ast.SQLObjectImpl
accept, acceptChild, acceptChild, addAfterComment, addAfterComment, addBeforeComment, addBeforeComment, cloneTo, computeDataType, containsAttribute, getAfterCommentsDirect, getAttribute, getAttributes, getAttributesDirect, getBeforeCommentsDirect, getHint, getParent, getParent, getSourceColumn, getSourceLine, hasAfterComment, hasBeforeComment, output, putAttribute, setHint, setParent, setSource, setSourceLine, toString

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.alibaba.druid.sql.ast.statement.SQLConstraint
getComment, getName, setComment, setHasConstraint, setName, simplify

Methods inherited from interface com.alibaba.druid.sql.ast.SQLObject
accept, addAfterComment, addAfterComment, addBeforeComment, addBeforeComment, containsAttribute, getAfterCommentsDirect, getAttribute, getAttributes, getAttributesDirect, getBeforeCommentsDirect, getParent, getParent, getSourceColumn, getSourceLine, hasAfterComment, hasBeforeComment, output, putAttribute, setParent, setSource

- Constructor Detail
  - SQLColumnDefault
```
public SQLColumnDefault()
```
- Method Detail
  - accept0
```
protected void accept0(SQLASTVisitor visitor)
```
    Specified by:
    
    accept0 in class SQLObjectImpl
  - clone
```
public SQLColumnDefault clone()
```
    Specified by:
    
    clone in interface SQLColumnConstraint
    
    Specified by:
    
    clone in interface SQLObject
    
    Specified by:
    
    clone in interface SQLTableElement
    
    Overrides:
    
    clone in class SQLObjectImpl
  - setDefaultExpr
```
public void setDefaultExpr(SQLExpr defaultExpr)
```
  - getDefaultExpr
```
public SQLExpr getDefaultExpr()
```
  - replace
```
public boolean replace(SQLExpr expr,
                       SQLExpr target)
```
    Specified by:
    
    replace in interface SQLReplaceable
    
    Overrides:
    
    replace in class SQLConstraintImpl