Source Code Cross Referenced for ParsePosition.java in  » Apache-Harmony-Java-SE » java-package » java » text » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Apache Harmony Java SE » java package » java.text 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /* 
002:         * Licensed to the Apache Software Foundation (ASF) under one or more
003:         * contributor license agreements.  See the NOTICE file distributed with
004:         * this work for additional information regarding copyright ownership.
005:         * The ASF licenses this file to You under the Apache License, Version 2.0
006:         * (the "License"); you may not use this file except in compliance with
007:         * the License.  You may obtain a copy of the License at
008:         * 
009:         *     http://www.apache.org/licenses/LICENSE-2.0
010:         * 
011:         * Unless required by applicable law or agreed to in writing, software
012:         * distributed under the License is distributed on an "AS IS" BASIS,
013:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         * See the License for the specific language governing permissions and
015:         * limitations under the License.
016:         */
017:
018:        package java.text;
019:
020:        /**
021:         * ParsePosition is used to track the current position in a String being parsed.
022:         */
023:        public class ParsePosition {
024:
025:            private int currentPosition, errorIndex = -1;
026:
027:            /**
028:             * Constructs a new ParsePosition at the specified index.
029:             * 
030:             * @param index
031:             *            the index to begin parsing
032:             */
033:            public ParsePosition(int index) {
034:                currentPosition = index;
035:            }
036:
037:            /**
038:             * Compares the specified object to this ParsePosition and answer if they
039:             * are equal. The object must be an instance of ParsePosition and have the
040:             * same index and error index.
041:             * 
042:             * @param object
043:             *            the object to compare with this object
044:             * @return true if the specified object is equal to this ParsePosition,
045:             *         false otherwise
046:             * 
047:             * @see #hashCode
048:             */
049:            @Override
050:            public boolean equals(Object object) {
051:                if (!(object instanceof  ParsePosition)) {
052:                    return false;
053:                }
054:                ParsePosition pos = (ParsePosition) object;
055:                return currentPosition == pos.currentPosition
056:                        && errorIndex == pos.errorIndex;
057:            }
058:
059:            /**
060:             * Answers the index at which the parse could not continue.
061:             * 
062:             * @return the index of the parse error, or -1 if there is no error
063:             */
064:            public int getErrorIndex() {
065:                return errorIndex;
066:            }
067:
068:            /**
069:             * Answers the current parse position.
070:             * 
071:             * @return the current position
072:             */
073:            public int getIndex() {
074:                return currentPosition;
075:            }
076:
077:            /**
078:             * Answers an integer hash code for the receiver. Objects which are equal
079:             * answer the same value for this method.
080:             * 
081:             * @return the receiver's hash
082:             * 
083:             * @see #equals
084:             */
085:            @Override
086:            public int hashCode() {
087:                return currentPosition + errorIndex;
088:            }
089:
090:            /**
091:             * Sets the index at which the parse could not continue.
092:             * 
093:             * @param index
094:             *            the index of the parse error
095:             */
096:            public void setErrorIndex(int index) {
097:                errorIndex = index;
098:            }
099:
100:            /**
101:             * Sets the current parse position.
102:             * 
103:             * @param index
104:             *            the current parse position
105:             */
106:            public void setIndex(int index) {
107:                currentPosition = index;
108:            }
109:
110:            /**
111:             * Answers the string representation of this FieldPosition.
112:             * 
113:             * @return the string representation of this FieldPosition
114:             */
115:            @Override
116:            public String toString() {
117:                return getClass().getName() + "[index=" + currentPosition //$NON-NLS-1$
118:                        + ", errorIndex=" + errorIndex + "]"; //$NON-NLS-1$ //$NON-NLS-2$
119:            }
120:        }
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