Example (Mapper-码云(gitee.com))

java.lang.Object
- tk.mybatis.mapper.entity.Example

All Implemented Interfaces:

IDynamicTableName

Direct Known Subclasses:

Condition, Weekend
```
public class Example
extends Object
implements IDynamicTableName
```
通用的Example查询对象

Author:

liuzh

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`static class`	`Example.Builder`
`static class`	`Example.Criteria`
`static class`	`Example.Criterion`
`protected static class`	`Example.GeneratedCriteria`
`static class`	`Example.OrderBy`

Field Summary

Fields
Modifier and Type	Field and Description
`protected String`	`countColumn`
`protected boolean`	`distinct`
`protected Class<?>`	`entityClass`
`protected Set<String>`	`excludeColumns`
`protected boolean`	`exists`
`protected boolean`	`forUpdate`
`protected boolean`	`notNull`
`protected Example.OrderBy`	`ORDERBY`
`protected String`	`orderByClause`
`protected List<Example.Criteria>`	`oredCriteria`
`protected Map<String,EntityColumn>`	`propertyMap`
`protected Set<String>`	`selectColumns`
`protected EntityTable`	`table`
`protected String`	`tableName`

Constructor Summary

Constructors
Constructor and Description
`Example(Class<?> entityClass)` 默认exists为true
`Example(Class<?> entityClass, boolean exists)` 带exists参数的构造方法，默认notNull为false，允许为空
`Example(Class<?> entityClass, boolean exists, boolean notNull)` 带exists参数的构造方法

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Example.Criteria`	`and()`
`void`	`and(Example.Criteria criteria)`
`static Example.Builder`	`builder(Class<?> entityClass)`
`void`	`clear()`
`Example.Criteria`	`createCriteria()`
`protected Example.Criteria`	`createCriteriaInternal()`
`Example`	`excludeProperties(String... properties)` 排除查询字段，优先级低于 selectProperties
`String`	`getCountColumn()`
`String`	`getDynamicTableName()` 获取动态表名 - 只要有返回值，不是null和''，就会用返回值作为表名
`Class<?>`	`getEntityClass()`
`String`	`getOrderByClause()`
`List<Example.Criteria>`	`getOredCriteria()`
`Map<String,EntityColumn>`	`getPropertyMap()`
`Set<String>`	`getSelectColumns()`
`boolean`	`isDistinct()`
`boolean`	`isForUpdate()`
`Example.Criteria`	`or()`
`void`	`or(Example.Criteria criteria)`
`Example.OrderBy`	`orderBy(String property)`
`Example`	`selectProperties(String... properties)` 指定要查询的属性列 - 这里会自动映射到表字段
`void`	`setCountProperty(String property)` 指定 count(property) 查询属性
`void`	`setDistinct(boolean distinct)`
`void`	`setForUpdate(boolean forUpdate)`
`void`	`setOrderByClause(String orderByClause)`
`void`	`setTableName(String tableName)` 设置表名

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

Field Detail

orderByClause
```
protected String orderByClause
```

distinct
```
protected boolean distinct
```

exists
```
protected boolean exists
```

notNull
```
protected boolean notNull
```

forUpdate
```
protected boolean forUpdate
```

selectColumns
```
protected Set<String> selectColumns
```

excludeColumns
```
protected Set<String> excludeColumns
```

countColumn
```
protected String countColumn
```

oredCriteria

protected List<Example.Criteria> oredCriteria

entityClass
```
protected Class<?> entityClass
```

table
```
protected EntityTable table
```

propertyMap

protected Map<String,EntityColumn> propertyMap

tableName
```
protected String tableName
```

ORDERBY
```
protected Example.OrderBy ORDERBY
```

Constructor Detail
- Example
```
public Example(Class<?> entityClass)
```
  默认exists为true
  
  Parameters:
  
  entityClass -
- Example
```
public Example(Class<?> entityClass,
               boolean exists)
```
  带exists参数的构造方法，默认notNull为false，允许为空
  
  Parameters:
  
  entityClass -
  
  exists - - true时，如果字段不存在就抛出异常，false时，如果不存在就不使用该字段的条件
- Example
```
public Example(Class<?> entityClass,
               boolean exists,
               boolean notNull)
```
  带exists参数的构造方法
  
  Parameters:
  
  entityClass -
  
  exists - - true时，如果字段不存在就抛出异常，false时，如果不存在就不使用该字段的条件
  
  notNull - - true时，如果值为空，就会抛出异常，false时，如果为空就不使用该字段的条件

Method Detail

builder

public static Example.Builder builder(Class<?> entityClass)

orderBy

public Example.OrderBy orderBy(String property)

excludeProperties
```
public Example excludeProperties(String... properties)
```
排除查询字段，优先级低于 selectProperties

Parameters:

properties - 属性名的可变参数

Returns:

selectProperties
```
public Example selectProperties(String... properties)
```
指定要查询的属性列 - 这里会自动映射到表字段

Parameters:

properties -

Returns:

or

public void or(Example.Criteria criteria)

or
```
public Example.Criteria or()
```

and

public void and(Example.Criteria criteria)

and
```
public Example.Criteria and()
```

createCriteria

public Example.Criteria createCriteria()

createCriteriaInternal

protected Example.Criteria createCriteriaInternal()

clear
```
public void clear()
```

getPropertyMap

public Map<String,EntityColumn> getPropertyMap()

getCountColumn
```
public String getCountColumn()
```

getDynamicTableName
```
public String getDynamicTableName()
```
Description copied from interface: IDynamicTableName

获取动态表名 - 只要有返回值，不是null和''，就会用返回值作为表名

Specified by:

getDynamicTableName in interface IDynamicTableName

Returns:

getEntityClass
```
public Class<?> getEntityClass()
```

getOrderByClause
```
public String getOrderByClause()
```

setOrderByClause

public void setOrderByClause(String orderByClause)

getOredCriteria

public List<Example.Criteria> getOredCriteria()

getSelectColumns
```
public Set<String> getSelectColumns()
```

isDistinct
```
public boolean isDistinct()
```

setDistinct

public void setDistinct(boolean distinct)

isForUpdate
```
public boolean isForUpdate()
```

setForUpdate

public void setForUpdate(boolean forUpdate)

setCountProperty
```
public void setCountProperty(String property)
```
指定 count(property) 查询属性

Parameters:

property -

setTableName

public void setTableName(String tableName)

设置表名

Parameters:: tableName -

Class Example

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

orderByClause

distinct

exists

notNull

forUpdate

selectColumns

excludeColumns

countColumn

oredCriteria

entityClass

table

propertyMap

tableName

ORDERBY

Constructor Detail

Example

Example

Example

Method Detail

builder

orderBy

excludeProperties

selectProperties

or

or

and

and

createCriteria

createCriteriaInternal

clear

getPropertyMap

getCountColumn

getDynamicTableName

getEntityClass

getOrderByClause

setOrderByClause

getOredCriteria

getSelectColumns

isDistinct

setDistinct

isForUpdate

setForUpdate

setCountProperty

setTableName