1045 public boolean delete() {
1046 SecurityManager security = System.getSecurityManager();
1047 if (security != null) {
1048 security.checkDelete(path);
1049 }
1050 if (isInvalid()) {
1051 return false;
1052 }
1053 return fs.delete(this);
1054 }
1055
1056 /**
1057 * Requests that the file or directory denoted by this abstract
1058 * pathname be deleted when the virtual machine terminates.
1059 * Files (or directories) are deleted in the reverse order that
1060 * they are registered. Invoking this method to delete a file or
1061 * directory that is already registered for deletion has no effect.
1062 * Deletion will be attempted only for normal termination of the
1063 * virtual machine, as defined by the Java Language Specification.
1064 *
1065 * <p> Once deletion has been requested, it is not possible to cancel the
1066 * request. This method should therefore be used with care.
1067 *
1068 * <P>
1069 * Note: this method should <i>not</i> be used for file-locking, as
1070 * the resulting protocol cannot be made to work reliably. The
1071 * {@link java.nio.channels.FileLock FileLock}
1072 * facility should be used instead.
1073 *
1074 * @throws SecurityException
1075 * If a security manager exists and its {@link
1076 * java.lang.SecurityManager#checkDelete} method denies
1077 * delete access to the file
1078 *
1079 * @see #delete
1080 *
1081 * @since 1.2
1082 */
1083 public void deleteOnExit() {
1084 SecurityManager security = System.getSecurityManager();
1085 if (security != null) {
1086 security.checkDelete(path);
1087 }
1088 if (isInvalid()) {
1089 return;
1090 }
1091 DeleteOnExitHook.add(path);
1092 }
1093
1094 /**
1095 * Returns an array of strings naming the files and directories in the
1096 * directory denoted by this abstract pathname.
1097 *
1098 * <p> If this abstract pathname does not denote a directory, then this
1099 * method returns {@code null}. Otherwise an array of strings is
1100 * returned, one for each file or directory in the directory. Names
1101 * denoting the directory itself and the directory's parent directory are
1102 * not included in the result. Each string is a file name rather than a
1103 * complete path.
1104 *
1105 * <p> There is no guarantee that the name strings in the resulting array
1106 * will appear in any specific order; they are not, in particular,
1107 * guaranteed to appear in alphabetical order.
1108 *
1109 * <p> Note that the {@link java.nio.file.Files} class defines the {@link
1110 * java.nio.file.Files#newDirectoryStream(Path) newDirectoryStream} method to
1111 * open a directory and iterate over the names of the files in the directory.
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1045 public boolean delete() {
1046 SecurityManager security = System.getSecurityManager();
1047 if (security != null) {
1048 security.checkDelete(path);
1049 }
1050 if (isInvalid()) {
1051 return false;
1052 }
1053 return fs.delete(this);
1054 }
1055
1056 /**
1057 * Requests that the file or directory denoted by this abstract
1058 * pathname be deleted when the virtual machine terminates.
1059 * Files (or directories) are deleted in the reverse order that
1060 * they are registered. Invoking this method to delete a file or
1061 * directory that is already registered for deletion has no effect.
1062 * Deletion will be attempted only for normal termination of the
1063 * virtual machine, as defined by the Java Language Specification.
1064 *
1065 * <p>
1066 * Once deletion has been requested, it may be cancelled by invoking
1067 * {@link #cancelDeleteOnExit()}.
1068 *
1069 * <P>
1070 * Note: this method should <i>not</i> be used for file-locking, as
1071 * the resulting protocol cannot be made to work reliably. The
1072 * {@link java.nio.channels.FileLock FileLock}
1073 * facility should be used instead.
1074 *
1075 * @throws SecurityException
1076 * If a security manager exists and its {@link
1077 * java.lang.SecurityManager#checkDelete} method denies
1078 * delete access to the file
1079 *
1080 * @see #cancelDeleteOnExit
1081 * @see #delete
1082 *
1083 * @since 1.2
1084 */
1085 public void deleteOnExit() {
1086 SecurityManager security = System.getSecurityManager();
1087 if (security != null) {
1088 security.checkDelete(path);
1089 }
1090 if (isInvalid()) {
1091 return;
1092 }
1093 DeleteOnExitHook.add(path);
1094 }
1095
1096 /**
1097 * Cancels any request that the file or directory denoted by this
1098 * abstract pathname be deleted when the virtual machine terminates.
1099 * Invoking this method for a file or directory that is not already
1100 * registered for deletion has no effect. If a file or directory is
1101 * registered for deletion but is explicitly deleted before normal
1102 * termination of the virtual machine, then it is recommended to call
1103 * this method to free resources used to track the file for deletion.
1104 *
1105 * @see #deleteOnExit
1106 *
1107 * @since 14
1108 */
1109 public void cancelDeleteOnExit() {
1110 if (isInvalid()) {
1111 return;
1112 }
1113 DeleteOnExitHook.remove(path);
1114 }
1115
1116 /**
1117 * Returns an array of strings naming the files and directories in the
1118 * directory denoted by this abstract pathname.
1119 *
1120 * <p> If this abstract pathname does not denote a directory, then this
1121 * method returns {@code null}. Otherwise an array of strings is
1122 * returned, one for each file or directory in the directory. Names
1123 * denoting the directory itself and the directory's parent directory are
1124 * not included in the result. Each string is a file name rather than a
1125 * complete path.
1126 *
1127 * <p> There is no guarantee that the name strings in the resulting array
1128 * will appear in any specific order; they are not, in particular,
1129 * guaranteed to appear in alphabetical order.
1130 *
1131 * <p> Note that the {@link java.nio.file.Files} class defines the {@link
1132 * java.nio.file.Files#newDirectoryStream(Path) newDirectoryStream} method to
1133 * open a directory and iterate over the names of the files in the directory.
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