我试图在groovy
中这样做def results = new File(someDirectory).listFiles { it.name.startsWith 'foo'}
但是,我得到了可以理解的错误:
groovy.lang.GroovyRuntimeException: Ambiguous method overloading for method java.io.File#listFiles.
Cannot resolve which method to invoke for [class change$_getRollback_closure1] due to overlapping prototypes between:
[interface java.io.FileFilter]
[interface java.io.FilenameFilter]
如何告诉它使用FileFilter ?
我最后写的是普通的java风格:
File[] files = someDir.listFiles( new FileFilter(){
@Override
boolean accept(File pathname) {
return pathname.name.startsWith("foo")
}
})
答案 0 :(得分:5)
您可以强制转换或强制关闭,以指定您所指的SAM类型/功能接口。
Float