BitFunction (H2 Database Engine 2.0.0 API)

java.lang.Object
- org.h2.expression.Expression
- - org.h2.expression.Operation1_2
  - - org.h2.expression.function.Function1_2
    - - org.h2.expression.function.BitFunction

所有已实现的接口:

NamedExpression, HasSQL, Typed
```
public final class BitFunction
extends Function1_2
```
A bitwise function.

字段概要

字段
限定符和类型	字段和说明
`static int`	`BITAND` BITAND() (non-standard).
`static int`	`BITCOUNT` BITCOUNT() (non-standard).
`static int`	`BITGET` BITGET() (non-standard).
`static int`	`BITNAND` BITNAND() (non-standard).
`static int`	`BITNOR` BITNOR() (non-standard).
`static int`	`BITNOT` BITNOT() (non-standard).
`static int`	`BITOR` BITOR() (non-standard).
`static int`	`BITXNOR` BITXNOR() (non-standard).
`static int`	`BITXOR` BITXOR() (non-standard).
`static int`	`LSHIFT` LSHIFT() (non-standard).
`static int`	`ROTATELEFT` ROTATELEFT() (non-standard).
`static int`	`ROTATERIGHT` ROTATERIGHT() (non-standard).
`static int`	`RSHIFT` RSHIFT() (non-standard).
`static int`	`ULSHIFT` ULSHIFT() (non-standard).
`static int`	`URSHIFT` URSHIFT() (non-standard).

从类继承的字段 org.h2.expression.Operation1_2
left, right, type

从类继承的字段 org.h2.expression.Expression
AUTO_PARENTHESES, MAP_IN_AGGREGATE, MAP_IN_WINDOW, MAP_INITIAL, WITH_PARENTHESES, WITHOUT_PARENTHESES

从接口继承的字段 org.h2.util.HasSQL
ADD_PLAN_INFORMATION, DEFAULT_SQL_FLAGS, NO_CASTS, QUOTE_ONLY_WHEN_REQUIRED, REPLACE_LOBS_FOR_TRACE, TRACE_SQL_FLAGS

构造器概要

构造器
构造器和说明

BitFunction(Expression arg1, Expression arg2, int function)

构造器
构造器和说明
`BitFunction(Expression arg1, Expression arg2, int function)`

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法和说明
`static TypeInfo`	`checkArgType(Expression arg)` Checks the type of an argument of bitwise function (one of `BITAND`, `BITOR`, `BITXOR`, `BITNOT`, `BITNAND`, `BITNOR`, `BITXNOR`).
`static Value`	`getBitwise(int function, TypeInfo type, Value v1, Value v2)` Computes the value of bitwise function.
`String`	`getName()` Get the name.
`Value`	`getValue(SessionLocal session, Value v1, Value v2)` Returns the value of this function.
`Expression`	`optimize(SessionLocal session)` Try to optimize the expression.

从类继承的方法 org.h2.expression.function.Function1_2
getUnenclosedSQL, getValue

从类继承的方法 org.h2.expression.Operation1_2
getCost, getSubexpression, getSubexpressionCount, getType, isEverything, mapColumns, setEvaluatable, updateAggregate

从类继承的方法 org.h2.expression.Expression
addFilterConditions, createIndexConditions, getAlias, getBooleanValue, getColumnName, getColumnNameForView, getEnclosedSQL, getNonAliasExpression, getNotIfPossible, getNullable, getSchemaName, getSQL, getSQL, getSQL, getSQL, getTableAlias, getTableName, getWhenSQL, getWhenValue, isConstant, isIdentity, isNullConstant, isValueSet, isWhenConditionOperand, needParentheses, optimizeCondition, toString, writeExpressions, writeExpressions

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.h2.util.HasSQL
getTraceSQL

- 字段详细资料
  - BITAND
```
public static final int BITAND
```
    BITAND() (non-standard).
    
    另请参阅:
    
    常量字段值
  - BITOR
```
public static final int BITOR
```
    BITOR() (non-standard).
    
    另请参阅:
    
    常量字段值
  - BITXOR
```
public static final int BITXOR
```
    BITXOR() (non-standard).
    
    另请参阅:
    
    常量字段值
  - BITNOT
```
public static final int BITNOT
```
    BITNOT() (non-standard).
    
    另请参阅:
    
    常量字段值
  - BITNAND
```
public static final int BITNAND
```
    BITNAND() (non-standard).
    
    另请参阅:
    
    常量字段值
  - BITNOR
```
public static final int BITNOR
```
    BITNOR() (non-standard).
    
    另请参阅:
    
    常量字段值
  - BITXNOR
```
public static final int BITXNOR
```
    BITXNOR() (non-standard).
    
    另请参阅:
    
    常量字段值
  - BITGET
```
public static final int BITGET
```
    BITGET() (non-standard).
    
    另请参阅:
    
    常量字段值
  - BITCOUNT
```
public static final int BITCOUNT
```
    BITCOUNT() (non-standard).
    
    另请参阅:
    
    常量字段值
  - LSHIFT
```
public static final int LSHIFT
```
    LSHIFT() (non-standard).
    
    另请参阅:
    
    常量字段值
  - RSHIFT
```
public static final int RSHIFT
```
    RSHIFT() (non-standard).
    
    另请参阅:
    
    常量字段值
  - ULSHIFT
```
public static final int ULSHIFT
```
    ULSHIFT() (non-standard).
    
    另请参阅:
    
    常量字段值
  - URSHIFT
```
public static final int URSHIFT
```
    URSHIFT() (non-standard).
    
    另请参阅:
    
    常量字段值
  - ROTATELEFT
```
public static final int ROTATELEFT
```
    ROTATELEFT() (non-standard).
    
    另请参阅:
    
    常量字段值
  - ROTATERIGHT
```
public static final int ROTATERIGHT
```
    ROTATERIGHT() (non-standard).
    
    另请参阅:
    
    常量字段值
- 构造器详细资料
  - BitFunction
```
public BitFunction(Expression arg1,
                   Expression arg2,
                   int function)
```
- 方法详细资料
  - getValue
```
public Value getValue(SessionLocal session,
                      Value v1,
                      Value v2)
```
    从类复制的说明: Function1_2
    
    Returns the value of this function.
    
    覆盖:
    
    getValue 在类中 Function1_2
    
    参数:
    
    session - the session
    
    v1 - the value of first argument
    
    v2 - the value of second argument, or null
    
    返回:
    
    the resulting value
  - getBitwise
```
public static Value getBitwise(int function,
                               TypeInfo type,
                               Value v1,
                               Value v2)
```
    Computes the value of bitwise function.
    
    参数:
    
    function - one of BITAND, BITOR, BITXOR, BITNOT, BITNAND, BITNOR, BITXNOR
    
    type - the type of result
    
    v1 - the value of first argument
    
    v2 - the value of second argument, or null
    
    返回:
    
    the resulting value
  - optimize
```
public Expression optimize(SessionLocal session)
```
    从类复制的说明: Expression
    
    Try to optimize the expression.
    
    指定者:
    
    optimize 在类中 Expression
    
    参数:
    
    session - the session
    
    返回:
    
    the optimized expression
  - checkArgType
```
public static TypeInfo checkArgType(Expression arg)
```
    Checks the type of an argument of bitwise function (one of BITAND, BITOR, BITXOR, BITNOT, BITNAND, BITNOR, BITXNOR).
    
    参数:
    
    arg - the argument
    
    返回:
    
    the type of the specified argument
    
    抛出:
    
    DbException - if argument type is not supported by bitwise functions
  - getName
```
public String getName()
```
    从接口复制的说明: NamedExpression
    
    Get the name.
    
    返回:
    
    the name in uppercase

类 BitFunction

字段概要

从类继承的字段 org.h2.expression.Operation1_2

从类继承的字段 org.h2.expression.Expression

从接口继承的字段 org.h2.util.HasSQL

构造器概要

方法概要

从类继承的方法 org.h2.expression.function.Function1_2

从类继承的方法 org.h2.expression.Operation1_2

从类继承的方法 org.h2.expression.Expression

从类继承的方法 java.lang.Object

从接口继承的方法 org.h2.util.HasSQL

字段详细资料

BITAND

BITOR

BITXOR

BITNOT

BITNAND

BITNOR

BITXNOR

BITGET

BITCOUNT

LSHIFT

RSHIFT

ULSHIFT

URSHIFT

ROTATELEFT

ROTATERIGHT

构造器详细资料

BitFunction

方法详细资料

getValue

getBitwise

optimize

checkArgType

getName