Package com.aspectran.core.context.asel.value

Class ValueExpression

java.lang.Object

com.aspectran.core.context.asel.value.ValueExpression

All Implemented Interfaces:

ValueEvaluator

Direct Known Subclasses:

BooleanExpression

public class ValueExpression
extends Object
implements ValueEvaluator

ValueEvaluator implementation that evaluates expressions written in OGNL-based Aspectran expression language.

Created: 2021/01/31

Since:

6.11.0

Constructor Summary

Constructors

Constructor	Description
ValueExpression(String expression)

Method Summary

Modifier and Type	Method	Description
<V> V	evaluate(Activity activity, Class<V> resultType)	Evaluates an expression.
static Object	evaluate(String expression, Activity activity)	Evaluates an expression.
static <V> V	evaluate(String expression, Activity activity, Class<V> resultType)	Evaluates an expression.
String	getExpressionString()
Object	getParsedExpression()
Token[]	getTokens()

Methods inherited from class java.lang.Object

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

Constructor Details

ValueExpression

public ValueExpression(String expression)
                throws ExpressionParserException

Throws:

ExpressionParserException

Method Details

getExpressionString

@Nullable
public String getExpressionString()

getParsedExpression

@Nullable
public Object getParsedExpression()

getTokens

@Nullable
public Token[] getTokens()

evaluate

public <V> V evaluate(Activity activity,
 Class<V> resultType)

Description copied from interface: ValueEvaluator

Evaluates an expression.

Specified by:

evaluate in interface ValueEvaluator

Type Parameters:

V - the type of the result

Parameters:

activity - the aspectran activity

resultType - the expected type of the result of the evaluation

Returns:

the result of the expression evaluation

evaluate

public static Object evaluate(String expression,
 Activity activity)

Evaluates an expression.

Parameters:

expression - the expression to be evaluated

activity - the aspectran activity

Returns:

the result of the expression evaluation

Throws:

ExpressionEvaluationException - thrown when an error occurs during expression evaluation

evaluate

public static <V> V evaluate(String expression,
 Activity activity,
 Class<V> resultType)

Evaluates an expression.

Type Parameters:

V - the type of the result

Parameters:

expression - the expression to be evaluated

activity - the aspectran activity

resultType - the expected type of the result of the evaluation

Returns:

the result of the expression evaluation

Throws:

ExpressionEvaluationException - thrown when an error occurs during expression evaluation