程序包 org.beetl.core.statement

类 CompareExpression

java.lang.Object

org.beetl.core.statement.ASTNode

org.beetl.core.statement.Expression

org.beetl.core.statement.CompareExpression

所有已实现的接口:

Serializable

public class CompareExpression
extends Expression

a> b,a>=b,a==b,a>b,a>=b

作者:

xiandafu

另请参阅:

• 序列化表格

字段概要

字段

修饰符和类型	字段	说明
Expression	a
Expression	b
protected short	compareMode
protected static final short	EQUAL
protected static final short	LARGE
protected static final short	LARGE_EQUAL
protected static final short	LESS
protected static final short	LESS_EQUAL
protected static final short	NOT_EQUAL

从类继承的字段 org.beetl.core.statement.ASTNode

token

构造器概要

构造器

构造器	说明
CompareExpression(Expression a, Expression b, short mode, GrammarToken token)

方法概要

修饰符和类型	方法	说明
Object	evaluate(Context ctx)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

EQUAL

protected static final short EQUAL

另请参阅:

• 常量字段值

NOT_EQUAL

protected static final short NOT_EQUAL

另请参阅:

• 常量字段值

LARGE

protected static final short LARGE

另请参阅:

• 常量字段值

LARGE_EQUAL

protected static final short LARGE_EQUAL

另请参阅:

• 常量字段值

LESS

protected static final short LESS

另请参阅:

• 常量字段值

LESS_EQUAL

protected static final short LESS_EQUAL

另请参阅:

• 常量字段值

compareMode

protected short compareMode

a

public Expression a

b

public Expression b

构造器详细资料

CompareExpression

public CompareExpression(Expression a,
 Expression b,
 short mode,
 GrammarToken token)

参数:

a -

b -

mode - 比较符号，未来应该换成一个比较实现内，以提高可扩展性

token -

方法详细资料

evaluate

public Object evaluate(Context ctx)

覆盖:

evaluate 在类中 Expression