Source Code Cross Referenced for Location.java in  » XML » saxonb » net » sf » saxon » trace » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » XML » saxonb » net.sf.saxon.trace 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package net.sf.saxon.trace;
002:
003:        /**
004:         * This class holds constants identifying different kinds of location in a source stylesheet or query.
005:         * These constants are used in the getConstructType() method of class InstructionInfo. Some of these
006:         * locations represent points where the dynamic context changes, and they are therefore recorded as
007:         * such on the context stack. Some of the locations represent points in the evaluation of a stylesheet
008:         * (or query or XPath expression) that are notified to the trace listener. Some fulfil both roles.
009:         *
010:         * <p>Any constant used in {@link net.sf.saxon.style.StandardNames} can be used as a Location. Such
011:         * names are generally used to identify XSLT instructions. They are also used for equivalent constructs
012:         * in XQuery, for example XSL_ELEMENT is used for a computed element constructor in XQuery. The constants
013:         * in StandardNames are all in the range 0-1023, so constants defined in this class are outside this
014:         * range.</p>
015:         *
016:         * <p>The constants in this file are annotated with Q to indicate they can appear in XQuery trace output,
017:         * T to indicate they can appear in XSLT trace output, and/or C to indicate that they can appear on the
018:         * dynamic context stack.</p>
019:         */
020:        public class Location {
021:
022:            /**
023:             * The outer system environment, identified as the caller of a user query or stylesheet.
024:             * Usage:C
025:             */
026:            public static final int CONTROLLER = 2000;
027:
028:            /**
029:             * An XSLT instruction. The name of the instruction (which may be an extension instruction) can
030:             * be obtained using the fingerprint property. Usage:T
031:             */
032:            public static final int EXTENSION_INSTRUCTION = 2005;
033:
034:            /**
035:             * An XSLT literal result element, or an XQuery direct element constructor. Usage:QT
036:             */
037:            public static final int LITERAL_RESULT_ELEMENT = 2006;
038:
039:            /**
040:             * An attribute of an XSLT literal result element or of an XQuery direct element constructor.
041:             * Usage: QT
042:             */
043:            public static final int LITERAL_RESULT_ATTRIBUTE = 2007;
044:
045:            /**
046:             * An XPath function call to a user-defined function.
047:             * The "expression" property references the actual expression, of class ComputedExpression.
048:             * The "target" property references the function being called, of class UserFunction.
049:             * Usage: QTC
050:             */
051:            public static final int FUNCTION_CALL = 2009;
052:
053:            /**
054:             * An XSLT built-in template rule. Usage: TC
055:             */
056:            public static final int BUILT_IN_TEMPLATE = 2010;
057:
058:            /**
059:             * Entry point to a top-level XPath expression within an XSLT stylesheet.
060:             * Usage: TC
061:             */
062:
063:            public static final int XPATH_IN_XSLT = 2011;
064:
065:            /**
066:             * An XPath or XQuery "for" clause. Usage: Q
067:             */
068:
069:            public static final int FOR_EXPRESSION = 2012;
070:
071:            /**
072:             * An XQuery "let" clause, or an XSLT local variable (which compiles into a LET clause).
073:             * Usage: Q,T
074:             */
075:
076:            public static final int LET_EXPRESSION = 2013;
077:
078:            /**
079:             * An XPath or XQuery "return" clause. Usage: Q
080:             */
081:
082:            public static final int RETURN_EXPRESSION = 2014;
083:
084:            /**
085:             * An XPath or XQuery "if" expression. Usage: Q
086:             */
087:
088:            public static final int IF_EXPRESSION = 2015;
089:
090:            /**
091:             * An XPath or XQuery "then" clause. Usage: Q
092:             */
093:
094:            public static final int THEN_EXPRESSION = 2016;
095:
096:            /**
097:             * An XPath or XQuery "else" clause. Usage: Q
098:             */
099:
100:            public static final int ELSE_EXPRESSION = 2017;
101:
102:            /**
103:             * A WHERE clause in a FLWOR expression. Usage: Q
104:             */
105:
106:            public static final int WHERE_CLAUSE = 2018;
107:
108:            /**
109:             * An order-by clause in a FLWOR expression. Usage: Q
110:             */
111:
112:            public static final int ORDER_BY_CLAUSE = 2019;
113:
114:            /**
115:             * An XPath or XQuery "typeswitch" expression. Usage: Q
116:             */
117:
118:            public static final int TYPESWITCH_EXPRESSION = 2020;
119:
120:            /**
121:             * CASE clause within "typeswitch". Usage: Q
122:             */
123:
124:            public static final int CASE_EXPRESSION = 2021;
125:
126:            /**
127:             * DEFAULT clause within "typeswitch". Usage: Q
128:             */
129:
130:            public static final int DEFAULT_EXPRESSION = 2022;
131:
132:            /**
133:             * An XPath or XQuery "validate" expression. Usage: Q
134:             */
135:
136:            public static final int VALIDATE_EXPRESSION = 2023;
137:
138:            /**
139:             * An XPath or XQuery filter expression. Usage: C
140:             */
141:
142:            public static final int FILTER_EXPRESSION = 2024;
143:
144:            /**
145:             * An XPath or XQuery path expression. Usage: C
146:             */
147:
148:            public static final int PATH_EXPRESSION = 2025;
149:
150:            /**
151:             * An explicit call of the fn:trace() function. Usage: QT
152:             */
153:
154:            public static final int TRACE_CALL = 2031;
155:
156:            /**
157:             * An XPath expression constructed dynamically using saxon:evaluate (or saxon:expression).
158:             * Usage: QTC
159:             */
160:
161:            public static final int SAXON_EVALUATE = 2051;
162:
163:            /**
164:             * A higher-order extension function such as saxon:sum, saxon:highest. Usage: C
165:             */
166:
167:            public static final int SAXON_HIGHER_ORDER_EXTENSION_FUNCTION = 2052;
168:
169:            /**
170:             * The saxon:serialize() extension function. Usage: C
171:             */
172:
173:            public static final int SAXON_SERIALIZE = 2053;
174:
175:            /**
176:             * A sort key (or order-by key). Usage: C
177:             */
178:
179:            public static final int SORT_KEY = 2061;
180:
181:            /**
182:             * A grouping key in XSLT. Usage: C
183:             */
184:
185:            public static final int GROUPING_KEY = 2062;
186:
187:            /**
188:             * Lazy evaluation of an expression (this code is used to identify a context created as a saved
189:             * copy of an existing context, to be stored in a Closure). Usage: C
190:             */
191:
192:            public static final int LAZY_EVALUATION = 2063;
193:
194:            /**
195:             * An XSLT Pattern. Usage: C
196:             */
197:
198:            public static final int PATTERN = 2064;
199:
200:            /**
201:             * XPath expression, otherwise unclassified. The "expression" property references the actual expression,
202:             * of class ComputedExpression. Used in fallback cases only.
203:             */
204:            public static final int XPATH_EXPRESSION = 2098;
205:
206:            /**
207:             * Unclassified location. Used in fallback cases only.
208:             */
209:            public static final int UNCLASSIFIED = 2099;
210:
211:            private Location() {
212:            }
213:        }
214:
215:        //
216:        // The contents of this file are subject to the Mozilla Public License Version 1.0 (the "License");
217:        // you may not use this file except in compliance with the License. You may obtain a copy of the
218:        // License at http://www.mozilla.org/MPL/
219:        //
220:        // Software distributed under the License is distributed on an "AS IS" basis,
221:        // WITHOUT WARRANTY OF ANY KIND, either express or implied.
222:        // See the License for the specific language governing rights and limitations under the License.
223:        //
224:        // The Original Code is: all this file.
225:        //
226:        // The Initial Developer of the Original Code is Michael H. Kay
227:        //
228:        // Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
229:        //
230:        // Contributor(s): none
231:        //
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