AviatorEvaluator (aviator 2.3.2 API)

java.lang.Object
- com.googlecode.aviator.AviatorEvaluator

public final class AviatorEvaluator
extends Object

Avaitor Expression evaluator

作者:: dennis

字段概要

字段
限定符和类型	字段和说明
`static int`	`BYTECODE_VER` Generated java class version,default 1.5
`static int`	`COMPILE` Optimized for compile speed
`static int`	`EVAL` Optimized for execute speed,this is the default option
`static Map<String,Object>`	`FUNC_MAP`
`static String`	`VERSION` Aviator version

方法概要

方法
限定符和类型	方法和说明
`static void`	`addFunction(AviatorFunction function)` Add a aviator function
`static void`	`clearExpressionCache()` Clear all cached compiled expression
`static Expression`	`compile(String expression)` Compile a text expression to Expression Object without caching
`static Expression`	`compile(String expression, boolean cached)` Compile a text expression to Expression object
`static boolean`	`containsFunction(String name)` Check if the function is existed in aviator
`static Object`	`exec(String expression, Object... values)` Execute a text expression with values that are variables order in the expression.It only runs in EVAL mode,and it will cache the compiled expression.
`static Object`	`execute(String expression)` Execute a text expression without caching and env map.
`static Object`	`execute(String expression, Map<String,Object> env)` Execute a text expression without caching
`static Object`	`execute(String expression, Map<String,Object> env, boolean cached)` Execute a text expression with environment
`static AviatorClassLoader`	`getAviatorClassLoader()` Returns classloader
`static Expression`	`getCachedExpression(String expression)` Returns a compiled expression in cache
`static AviatorFunction`	`getFunction(String name)` get a aviator function by name,throw exception if null
`static MathContext`	`getMathContext()` Returns current math context for decimal.
`static OutputStream`	`getTraceOutputStream()` Get current trace output stream,default is System.out
`static void`	`invalidateCache(String expression)` Invalidate expression cache
`static AviatorFunction`	`removeFunction(AviatorFunction function)` Remove a aviator function
`static AviatorFunction`	`removeFunction(String name)` Remove a aviator function by name
`static void`	`setAviatorClassLoader(AviatorClassLoader aviatorClassLoader)` Configure user defined classloader
`static void`	`setBYTECODE_VER(int nversion)`
`static void`	`setMathContext(MathContext mathContext)` Set math context for decimal.
`static void`	`setOptimize(int value)` set optimize level,default AviatorEvaluator.EVAL
`static void`	`setTrace(boolean t)` Configure whether to trace code generation
`static void`	`setTraceOutputStream(OutputStream traceOutputStream)` Set trace output stream

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
  - COMPILE
```
public static final int COMPILE
```
    Optimized for compile speed
    
    另请参阅:
    常量字段值
  - EVAL
```
public static final int EVAL
```
    Optimized for execute speed,this is the default option
    
    另请参阅:
    常量字段值
  - VERSION
```
public static final String VERSION
```
    Aviator version
    
    另请参阅:
    常量字段值
  - BYTECODE_VER
```
public static int BYTECODE_VER
```
    Generated java class version,default 1.5
  - FUNC_MAP
```
public static final Map<String,Object> FUNC_MAP
```
- 方法详细资料
  - setTrace
```
public static void setTrace(boolean t)
```
    Configure whether to trace code generation
    
    参数:
    t - true is to trace,default is false.
  - getTraceOutputStream
```
public static OutputStream getTraceOutputStream()
```
    Get current trace output stream,default is System.out
    
    返回:
  - getMathContext
```
public static MathContext getMathContext()
```
    Returns current math context for decimal.
    
    返回:
    从以下版本开始:
    
    2.3.0
  - setMathContext
```
public static void setMathContext(MathContext mathContext)
```
    Set math context for decimal.
    
    参数:
    mathContext -
    从以下版本开始:
    
    2.3.0
  - setTraceOutputStream
```
public static void setTraceOutputStream(OutputStream traceOutputStream)
```
    Set trace output stream
    
    参数:
    traceOutputStream -
  - setOptimize
```
public static void setOptimize(int value)
```
    set optimize level,default AviatorEvaluator.EVAL
    
    参数:
    value -
    另请参阅:
    COMPILE, EVAL
  - setBYTECODE_VER
```
public static void setBYTECODE_VER(int nversion)
```
  - clearExpressionCache
```
public static void clearExpressionCache()
```
    Clear all cached compiled expression
  - getAviatorClassLoader
```
public static AviatorClassLoader getAviatorClassLoader()
```
    Returns classloader
    
    返回:
  - addFunction
```
public static void addFunction(AviatorFunction function)
```
    Add a aviator function
    
    参数:
    function -
  - removeFunction
```
public static AviatorFunction removeFunction(String name)
```
    Remove a aviator function by name
    
    参数:
    name -
    
    返回:
  - getFunction
```
public static AviatorFunction getFunction(String name)
```
    get a aviator function by name,throw exception if null
    
    参数:
    name -
    
    返回:
  - containsFunction
```
public static boolean containsFunction(String name)
```
    Check if the function is existed in aviator
    
    参数:
    name -
    
    返回:
  - removeFunction
```
public static AviatorFunction removeFunction(AviatorFunction function)
```
    Remove a aviator function
    
    参数:
    function -
    
    返回:
  - setAviatorClassLoader
```
public static void setAviatorClassLoader(AviatorClassLoader aviatorClassLoader)
```
    Configure user defined classloader
    
    参数:
    aviatorClassLoader -
  - getCachedExpression
```
public static Expression getCachedExpression(String expression)
```
    Returns a compiled expression in cache
    
    参数:
    expression -
    
    返回:
  - compile
```
public static Expression compile(String expression,
                 boolean cached)
```
    Compile a text expression to Expression object
    
    参数:
    expression - text expression
    cached - Whether to cache the compiled result,make true to cache it.
    
    返回:
  - compile
```
public static Expression compile(String expression)
```
    Compile a text expression to Expression Object without caching
    
    参数:
    expression -
    
    返回:
  - exec
```
public static Object exec(String expression,
          Object... values)
```
    Execute a text expression with values that are variables order in the expression.It only runs in EVAL mode,and it will cache the compiled expression.
    
    参数:
    expression -
    values -
    
    返回:
  - execute
```
public static Object execute(String expression,
             Map<String,Object> env,
             boolean cached)
```
    Execute a text expression with environment
    
    参数:
    expression - text expression
    env - Binding variable environment
    cached - Whether to cache the compiled result,make true to cache it.
  - execute
```
public static Object execute(String expression,
             Map<String,Object> env)
```
    Execute a text expression without caching
    
    参数:
    expression -
    env -
    
    返回:
  - invalidateCache
```
public static void invalidateCache(String expression)
```
    Invalidate expression cache
    
    参数:
    expression -
  - execute
```
public static Object execute(String expression)
```
    Execute a text expression without caching and env map.
    
    参数:
    expression -
    
    返回:

类 AviatorEvaluator

字段概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

COMPILE

EVAL

VERSION

BYTECODE_VER

FUNC_MAP

方法详细资料

setTrace

getTraceOutputStream

getMathContext

setMathContext

setTraceOutputStream

setOptimize

setBYTECODE_VER

clearExpressionCache

getAviatorClassLoader

addFunction

removeFunction

getFunction

containsFunction

removeFunction

setAviatorClassLoader

getCachedExpression

compile

compile

exec

execute

execute

invalidateCache

execute