/* Copyright (c) 2001-2009, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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package org.hsqldb_voltpatches.scriptio;
import java.io.IOException;
import org.hsqldb_voltpatches.Database;
import org.hsqldb_voltpatches.NumberSequence;
import org.hsqldb_voltpatches.Session;
import org.hsqldb_voltpatches.Table;
import org.hsqldb_voltpatches.persist.PersistentStore;
/**
* Base class for all script readers.
*
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 1.7.2
* @since 1.7.2
*/
public abstract class ScriptReaderBase {
public static ScriptReaderBase newScriptReader(Database db, String file,
int scriptType) throws IOException {
if (scriptType == ScriptWriterBase.SCRIPT_TEXT_170) {
return new ScriptReaderText(db, file);
} else if (scriptType == ScriptWriterBase.SCRIPT_BINARY_172) {
return new ScriptReaderBinary(db, file);
} else {
return new ScriptReaderZipped(db, file);
}
}
public static final int ANY_STATEMENT = 1;
public static final int DELETE_STATEMENT = 2;
public static final int INSERT_STATEMENT = 3;
public static final int SEQUENCE_STATEMENT = 4;
public static final int COMMIT_STATEMENT = 5;
public static final int SESSION_ID = 6;
public static final int SET_SCHEMA_STATEMENT = 7;
Database db;
int lineCount;
// int byteCount;
String fileName;
ScriptReaderBase(Database db,
String file) throws IOException {
this.db = db;
fileName = file;
openFile();
}
protected abstract void openFile() throws IOException;
public void readAll(Session session) throws IOException {
readDDL(session);
readExistingData(session);
}
protected abstract void readDDL(Session session)
throws IOException;
protected abstract void readExistingData(Session session)
throws IOException;
public abstract boolean readLoggedStatement(Session session)
throws IOException;
int statementType;
int sessionNumber;
Object[] rowData;
long sequenceValue;
String statement;
Table currentTable;
PersistentStore currentStore;
NumberSequence currentSequence;
String currentSchema;
public int getStatementType() {
return statementType;
}
public int getSessionNumber() {
return sessionNumber;
}
public Object[] getData() {
return rowData;
}
public String getLoggedStatement() {
return statement;
}
public NumberSequence getCurrentSequence() {
return currentSequence;
}
public long getSequenceValue() {
return sequenceValue;
}
public Table getCurrentTable() {
return currentTable;
}
public String getCurrentSchema() {
return currentSchema;
}
public int getLineNumber() {
return lineCount;
}
public abstract void close();
}