001: /*
002:
003: Derby - Class org.apache.derby.impl.sql.execute.rts.RealRowResultSetStatistics
004:
005: Licensed to the Apache Software Foundation (ASF) under one or more
006: contributor license agreements. See the NOTICE file distributed with
007: this work for additional information regarding copyright ownership.
008: The ASF licenses this file to you under the Apache License, Version 2.0
009: (the "License"); you may not use this file except in compliance with
010: the License. You may obtain a copy of the License at
011:
012: http://www.apache.org/licenses/LICENSE-2.0
013:
014: Unless required by applicable law or agreed to in writing, software
015: distributed under the License is distributed on an "AS IS" BASIS,
016: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
017: See the License for the specific language governing permissions and
018: limitations under the License.
019:
020: */
021:
022: package org.apache.derby.impl.sql.execute.rts;
023:
024: import org.apache.derby.iapi.services.io.StoredFormatIds;
025:
026: import org.apache.derby.iapi.services.i18n.MessageService;
027: import org.apache.derby.iapi.reference.SQLState;
028:
029: import org.apache.derby.iapi.services.io.FormatableHashtable;
030:
031: import java.io.ObjectOutput;
032: import java.io.ObjectInput;
033: import java.io.IOException;
034:
035: /**
036: ResultSetStatistics implemenation for RowResultSet.
037:
038: @author jerry
039:
040: */
041: public class RealRowResultSetStatistics extends
042: RealNoPutResultSetStatistics {
043:
044: /* Leave these fields public for object inspectors */
045: public int rowsReturned;
046:
047: // CONSTRUCTORS
048: /**
049: *
050: *
051: */
052: public RealRowResultSetStatistics(int numOpens, int rowsSeen,
053: int rowsFiltered, long constructorTime, long openTime,
054: long nextTime, long closeTime, int resultSetNumber,
055: int rowsReturned, double optimizerEstimatedRowCount,
056: double optimizerEstimatedCost) {
057: super (numOpens, rowsSeen, rowsFiltered, constructorTime,
058: openTime, nextTime, closeTime, resultSetNumber,
059: optimizerEstimatedRowCount, optimizerEstimatedCost);
060: this .rowsReturned = rowsReturned;
061: }
062:
063: // ResultSetStatistics methods
064:
065: /**
066: * Return the statement execution plan as a String.
067: *
068: * @param depth Indentation level.
069: *
070: * @return String The statement execution plan as a String.
071: */
072: public String getStatementExecutionPlanText(int depth) {
073: initFormatInfo(depth);
074:
075: return indent
076: + MessageService.getTextMessage(SQLState.RTS_ROW_RS)
077: + ":\n"
078: + indent
079: + MessageService.getTextMessage(SQLState.RTS_NUM_OPENS)
080: + " = "
081: + numOpens
082: + "\n"
083: + indent
084: + MessageService
085: .getTextMessage(SQLState.RTS_ROWS_RETURNED)
086: + " = " + rowsReturned + "\n"
087: + dumpTimeStats(indent, subIndent) + "\n"
088: + dumpEstimatedCosts(subIndent) + "\n";
089: }
090:
091: /**
092: * Return information on the scan nodes from the statement execution
093: * plan as a String.
094: *
095: * @param depth Indentation level.
096: * @param tableName if not NULL then print information for this table only
097: *
098: * @return String The information on the scan nodes from the
099: * statement execution plan as a String.
100: */
101: public String getScanStatisticsText(String tableName, int depth) {
102: return "";
103: }
104:
105: // Class implementation
106:
107: public String toString() {
108: return getStatementExecutionPlanText(0);
109: }
110:
111: /**
112: * Format for display, a name for this node.
113: *
114: */
115: public String getNodeName() {
116: return MessageService.getTextMessage(SQLState.RTS_ROW_RS);
117: }
118: }
|