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Adds deleteID method to MariaDB

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This commit is contained in:
tastybento 2019-01-13 08:14:08 -08:00
parent 6557d2fad5
commit d8eab7e397
1 changed files with 32 additions and 12 deletions
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44
src/main/java/world/bentobox/bentobox/database/mariadb/MariaDBDatabaseHandler.java
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@ -1,17 +1,22 @@
package world.bentobox.bentobox.database.mariadb;
import java.lang.reflect.Method;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import com.google.gson.Gson;
import com.google.gson.JsonSyntaxException;
import world.bentobox.bentobox.BentoBox;
import world.bentobox.bentobox.database.DatabaseConnector;
import world.bentobox.bentobox.database.json.AbstractJSONDatabaseHandler;
import world.bentobox.bentobox.database.objects.DataObject;
import java.lang.reflect.Method;
import java.sql.*;
import java.util.ArrayList;
import java.util.List;
/**
* Class that inserts a <T> into the corresponding database-table.
*
@ -132,20 +137,35 @@ public class MariaDBDatabaseHandler<T> extends AbstractJSONDatabaseHandler<T> {
}
@Override
public void deleteObject(T instance) {
if (!(instance instanceof DataObject)) {
plugin.logError("This class is not a DataObject: " + instance.getClass().getName());
return;
}
public boolean deleteID(String uniqueId) {
String sb = "DELETE FROM `" +
dataObject.getCanonicalName() +
"` WHERE uniqueId = ?";
try (PreparedStatement preparedStatement = connection.prepareStatement(sb)) {
Method getUniqueId = dataObject.getMethod("getUniqueId");
String uniqueId = (String) getUniqueId.invoke(instance);
// UniqueId needs to be placed in quotes
preparedStatement.setString(1, "\"" + uniqueId + "\"");
preparedStatement.execute();
return preparedStatement.getUpdateCount() > 0;
} catch (Exception e) {
plugin.logError("Could not delete object " + dataObject.getCanonicalName() + " " + uniqueId + " " + e.getMessage());
return false;
}
}
@Override
public void deleteObject(T instance) {
// Null check
if (instance == null) {
plugin.logError("MariaDB database request to delete a null. ");
return;
}
if (!(instance instanceof DataObject)) {
plugin.logError("This class is not a DataObject: " + instance.getClass().getName());
return;
}
try {
Method getUniqueId = dataObject.getMethod("getUniqueId");
deleteID((String) getUniqueId.invoke(instance));
} catch (Exception e) {
plugin.logError("Could not delete object " + instance.getClass().getName() + " " + e.getMessage());
}