src/share/classes/javax/tools/Diagnostic.java

Tue, 25 May 2010 15:54:51 -0700

author
ohair
date
Tue, 25 May 2010 15:54:51 -0700
changeset 554
9d9f26857129
parent 1
9a66ca7c79fa
child 2087
515d54c1b063
permissions
-rw-r--r--

6943119: Rebrand source copyright notices
Reviewed-by: darcy

duke@1 1 /*
ohair@554 2 * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
duke@1 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1 4 *
duke@1 5 * This code is free software; you can redistribute it and/or modify it
duke@1 6 * under the terms of the GNU General Public License version 2 only, as
ohair@554 7 * published by the Free Software Foundation. Oracle designates this
duke@1 8 * particular file as subject to the "Classpath" exception as provided
ohair@554 9 * by Oracle in the LICENSE file that accompanied this code.
duke@1 10 *
duke@1 11 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@1 14 * version 2 for more details (a copy is included in the LICENSE file that
duke@1 15 * accompanied this code).
duke@1 16 *
duke@1 17 * You should have received a copy of the GNU General Public License version
duke@1 18 * 2 along with this work; if not, write to the Free Software Foundation,
duke@1 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1 20 *
ohair@554 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554 22 * or visit www.oracle.com if you need additional information or have any
ohair@554 23 * questions.
duke@1 24 */
duke@1 25
duke@1 26 package javax.tools;
duke@1 27
duke@1 28 import java.util.Locale;
duke@1 29
duke@1 30 /**
duke@1 31 * Interface for diagnostics from tools. A diagnostic usually reports
duke@1 32 * a problem at a specific position in a source file. However, not
duke@1 33 * all diagnostics are associated with a position or a file.
duke@1 34 *
duke@1 35 * <p>A position is a zero-based character offset from the beginning of
duke@1 36 * a file. Negative values (except {@link #NOPOS}) are not valid
duke@1 37 * positions.
duke@1 38 *
duke@1 39 * <p>Line and column numbers begin at 1. Negative values (except
duke@1 40 * {@link #NOPOS}) and 0 are not valid line or column numbers.
duke@1 41 *
duke@1 42 * @param <S> the type of source object used by this diagnostic
duke@1 43 *
duke@1 44 * @author Peter von der Ah&eacute;
duke@1 45 * @author Jonathan Gibbons
duke@1 46 * @since 1.6
duke@1 47 */
duke@1 48 public interface Diagnostic<S> {
duke@1 49
duke@1 50 /**
duke@1 51 * Kinds of diagnostics, for example, error or warning.
duke@1 52 */
duke@1 53 enum Kind {
duke@1 54 /**
duke@1 55 * Problem which prevents the tool's normal completion.
duke@1 56 */
duke@1 57 ERROR,
duke@1 58 /**
duke@1 59 * Problem which does not usually prevent the tool from
duke@1 60 * completing normally.
duke@1 61 */
duke@1 62 WARNING,
duke@1 63 /**
duke@1 64 * Problem similar to a warning, but is mandated by the tool's
duke@1 65 * specification. For example, the Java&trade; Language
duke@1 66 * Specification, 3rd Ed. mandates warnings on certain
duke@1 67 * unchecked operations and the use of deprecated methods.
duke@1 68 */
duke@1 69 MANDATORY_WARNING,
duke@1 70 /**
duke@1 71 * Informative message from the tool.
duke@1 72 */
duke@1 73 NOTE,
duke@1 74 /**
duke@1 75 * Diagnostic which does not fit within the other kinds.
duke@1 76 */
duke@1 77 OTHER,
duke@1 78 }
duke@1 79
duke@1 80 /**
duke@1 81 * Used to signal that no position is available.
duke@1 82 */
duke@1 83 public final static long NOPOS = -1;
duke@1 84
duke@1 85 /**
duke@1 86 * Gets the kind of this diagnostic, for example, error or
duke@1 87 * warning.
duke@1 88 * @return the kind of this diagnostic
duke@1 89 */
duke@1 90 Kind getKind();
duke@1 91
duke@1 92 /**
duke@1 93 * Gets the source object associated with this diagnostic.
duke@1 94 *
duke@1 95 * @return the source object associated with this diagnostic.
duke@1 96 * {@code null} if no source object is associated with the
duke@1 97 * diagnostic.
duke@1 98 */
duke@1 99 S getSource();
duke@1 100
duke@1 101 /**
duke@1 102 * Gets a character offset from the beginning of the source object
duke@1 103 * associated with this diagnostic that indicates the location of
duke@1 104 * the problem. In addition, the following must be true:
duke@1 105 *
duke@1 106 * <p>{@code getStartPostion() <= getPosition()}
duke@1 107 * <p>{@code getPosition() <= getEndPosition()}
duke@1 108 *
duke@1 109 * @return character offset from beginning of source; {@link
duke@1 110 * #NOPOS} if {@link #getSource()} would return {@code null} or if
duke@1 111 * no location is suitable
duke@1 112 */
duke@1 113 long getPosition();
duke@1 114
duke@1 115 /**
duke@1 116 * Gets the character offset from the beginning of the file
duke@1 117 * associated with this diagnostic that indicates the start of the
duke@1 118 * problem.
duke@1 119 *
duke@1 120 * @return offset from beginning of file; {@link #NOPOS} if and
duke@1 121 * only if {@link #getPosition()} returns {@link #NOPOS}
duke@1 122 */
duke@1 123 long getStartPosition();
duke@1 124
duke@1 125 /**
duke@1 126 * Gets the character offset from the beginning of the file
duke@1 127 * associated with this diagnostic that indicates the end of the
duke@1 128 * problem.
duke@1 129 *
duke@1 130 * @return offset from beginning of file; {@link #NOPOS} if and
duke@1 131 * only if {@link #getPosition()} returns {@link #NOPOS}
duke@1 132 */
duke@1 133 long getEndPosition();
duke@1 134
duke@1 135 /**
duke@1 136 * Gets the line number of the character offset returned by
duke@1 137 * {@linkplain #getPosition()}.
duke@1 138 *
duke@1 139 * @return a line number or {@link #NOPOS} if and only if {@link
duke@1 140 * #getPosition()} returns {@link #NOPOS}
duke@1 141 */
duke@1 142 long getLineNumber();
duke@1 143
duke@1 144 /**
duke@1 145 * Gets the column number of the character offset returned by
duke@1 146 * {@linkplain #getPosition()}.
duke@1 147 *
duke@1 148 * @return a column number or {@link #NOPOS} if and only if {@link
duke@1 149 * #getPosition()} returns {@link #NOPOS}
duke@1 150 */
duke@1 151 long getColumnNumber();
duke@1 152
duke@1 153 /**
duke@1 154 * Gets a diagnostic code indicating the type of diagnostic. The
duke@1 155 * code is implementation-dependent and might be {@code null}.
duke@1 156 *
duke@1 157 * @return a diagnostic code
duke@1 158 */
duke@1 159 String getCode();
duke@1 160
duke@1 161 /**
duke@1 162 * Gets a localized message for the given locale. The actual
duke@1 163 * message is implementation-dependent. If the locale is {@code
duke@1 164 * null} use the default locale.
duke@1 165 *
duke@1 166 * @param locale a locale; might be {@code null}
duke@1 167 * @return a localized message
duke@1 168 */
duke@1 169 String getMessage(Locale locale);
duke@1 170 }

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