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Table.java
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Table.java
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/**
* This file is part of LWC (https://github.com/Hidendra/LWC)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.griefcraft.sql;
import com.griefcraft.lwc.LWC;
import com.griefcraft.sql.Database.Type;
import com.griefcraft.util.Performance;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
public class Table {
/**
* The columns in the table
*/
private List<Column> columns;
/**
* The database object associated with this table
*/
private Database database;
/**
* If this table is to be stored in memory
*/
private boolean memory;
/**
* The table's name
*/
private String name;
public Table(Database database, String name) {
this.database = database;
this.name = name;
columns = new ArrayList<Column>();
}
/**
* Add a column to the table
*
* @param column
*/
public void add(Column column) {
column.setTable(this);
columns.add(column);
}
/**
* Create the table
*/
public void execute() {
StringBuilder buffer = new StringBuilder("CREATE TABLE IF NOT EXISTS ");
// do the prefix, if we're using MySQL
String prefix = LWC.getInstance().getConfiguration().getString("database.prefix", "");
if(prefix == null) {
prefix = "";
}
// the table name
buffer.append(prefix).append(name);
buffer.append(" ( ");
// add the columns
for (int index = 0; index < columns.size(); index++) {
Column column = columns.get(index);
buffer.append(column.getName());
buffer.append(" ");
buffer.append(column.getType());
buffer.append(" ");
if (column.isPrimary()) {
buffer.append("PRIMARY KEY ");
}
if (column.shouldAutoIncrement() && database.getType() == Type.MySQL) {
buffer.append("AUTO_INCREMENT ");
}
if(!column.getDefaultValue().isEmpty()) {
buffer.append("DEFAULT ");
buffer.append(column.getDefaultValue());
buffer.append(" ");
}
// check if there's more columns in the stack
if (index != (columns.size() - 1)) {
buffer.append(",");
buffer.append(" ");
}
}
// finalize
buffer.append(" ) ");
// if we're using mysql, check if we're in memory
if (memory && database.getType() == Type.MySQL) {
buffer.append("ENGINE = MEMORY");
}
// end it
buffer.append(";");
// execute it directly to the database
Statement statement = null;
try {
statement = database.getConnection().createStatement();
statement.executeUpdate(buffer.toString());
} catch (SQLException e) {
e.printStackTrace();
} finally {
if (statement != null) {
try {
statement.close();
} catch (SQLException e) {
}
}
}
// database.log("Synched table " + prefix + name + " (" + columns.size() + " columns)");
// add the query to performance
if (memory) {
Performance.addMemDBQuery();
} else {
Performance.addPhysDBQuery();
}
}
/**
* @return
*/
public boolean isInMemory() {
return memory;
}
/**
* Set if the table is in memory
*
* @param memory
*/
public void setMemory(boolean memory) {
this.memory = memory;
}
}