question: boolean queryOverwriteFile ( IFile targetFile , int policy ) { if ( policy != POLICY_FORCE_OVERWRITE ) { if ( this . overwriteState == OVERWRITE_NOT_SET && ! queryOverwrite ( targetFile . getFullPath ( ) ) ) { return false ; } if ( this . overwriteState == OVERWRITE_NONE ) { return false ; } } return true ; }
target:  Returns whether the given file should be overwritten.