PGExtractExpr (druid 1.2.26 API)

java.lang.Object
- com.alibaba.druid.sql.ast.SQLObjectImpl
- - com.alibaba.druid.sql.ast.SQLExprImpl
  - - com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGExprImpl
    - - com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGExtractExpr

All Implemented Interfaces:

SQLExpr, SQLObject, SQLReplaceable, PGExpr, PGSQLObject, Cloneable
```
public class PGExtractExpr
extends PGExprImpl
implements SQLReplaceable
```

Field Summary
- Fields inherited from class com.alibaba.druid.sql.ast.SQLExprImpl
  parenthesized, parenthesizedCount
- Fields inherited from class com.alibaba.druid.sql.ast.SQLObjectImpl
  attributes, hint, parent, sourceColumn, sourceLine

Constructor Summary

Constructors
Constructor Description

PGExtractExpr()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`accept0(PGASTVisitor visitor)`
`PGExtractExpr`	`clone()`
`boolean`	`equals(Object obj)`
`List<SQLObject>`	`getChildren()`
`PGDateField`	`getField()`
`SQLExpr`	`getSource()`
`int`	`hashCode()`
`boolean`	`replace(SQLExpr expr, SQLExpr target)`
`void`	`setField(PGDateField field)`
`void`	`setSource(SQLExpr source)`

Methods inherited from class com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGExprImpl
accept0, toString

Methods inherited from class com.alibaba.druid.sql.ast.SQLExprImpl
cloneTo, computeDataType, getParenthesizedCount, increaseParenthesizedCount, isParenthesized, setParenthesized, setParenthesizedCount

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

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

Methods inherited from interface com.alibaba.druid.sql.ast.SQLExpr
computeDataType, getHint

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
  - PGExtractExpr
```
public PGExtractExpr()
```
- Method Detail
  - clone
```
public PGExtractExpr clone()
```
    Specified by:
    
    clone in interface SQLExpr
    
    Specified by:
    
    clone in interface SQLObject
    
    Specified by:
    
    clone in class SQLExprImpl
  - getField
```
public PGDateField getField()
```
  - setField
```
public void setField(PGDateField field)
```
  - getSource
```
public SQLExpr getSource()
```
  - setSource
```
public void setSource(SQLExpr source)
```
  - replace
```
public boolean replace(SQLExpr expr,
                       SQLExpr target)
```
    Specified by:
    
    replace in interface SQLReplaceable
  - accept0
```
public void accept0(PGASTVisitor visitor)
```
    Specified by:
    
    accept0 in interface PGSQLObject
    
    Specified by:
    
    accept0 in class PGExprImpl
  - getChildren
```
public List<SQLObject> getChildren()
```
    Specified by:
    
    getChildren in interface SQLExpr
    
    Overrides:
    
    getChildren in class SQLExprImpl
  - hashCode
```
public int hashCode()
```
    Specified by:
    
    hashCode in class SQLExprImpl
  - equals
```
public boolean equals(Object obj)
```
    Specified by:
    
    equals in class SQLExprImpl