missingmethodexception.java

来自「Groovy动态语言 运行在JVM中的动态语言 可以方便的处理业务逻辑变化大的业」· Java 代码 · 共 107 行

/*
 $Id: MissingMethodException.java 4254 2006-11-23 20:38:19Z blackdrag $

 Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.

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 ("Software"), with or without modification, are permitted provided
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    http://groovy.codehaus.org/

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 */
package groovy.lang;

import org.codehaus.groovy.runtime.InvokerHelper;

/**
 * An exception occurred if a dynamic method dispatch fails with an unknown method.
 * 
 * Note that the Missing*Exception classes were named for consistency and
 * to avoid conflicts with JDK exceptions of the same name.
 * 
 * @author <a href="mailto:[e-mail]">James Strachan</a>
 * @version $Revision: 4254 $
 */
public class MissingMethodException extends GroovyRuntimeException {

    private String method;
    private Class type;
    private boolean isStatic;

    public MissingMethodException(String method, Class type, Object[] arguments) {
        this(method,type,arguments,false);
    }
    
    public MissingMethodException(String method, Class type, Object[] arguments, boolean isStatic) {
	    super(
	        "No signature of method: "
	    		+ (isStatic ? "static " : "")
	    		+ type.getName()
				+ "."
	            + method
				+ "() is applicable for argument types: ("
				+ InvokerHelper.toTypeString(arguments)
	            + ") values: "
				+ InvokerHelper.toString(arguments));
	    this.method = method;
	    this.type = type;
        this.isStatic = isStatic;
	}
    
    /**
     * @return the name of the method that could not be found
     */
    public String getMethod() {
        return method;
    }

    /**
     * @return The type on which the method was attempted to be called
     */
    public Class getType() {
        return type;
    }
    
    /**
     * @return Whether the method was called in a static way, 
     * i.e. on a class rather than an object.
     */
    public boolean isStatic() {
        return isStatic;
    }
}