space.lingu.light.sql.SQLGenerator Maven / Gradle / Ivy
/*
* Copyright (C) 2022 Lingu Light Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package space.lingu.light.sql;
import space.lingu.light.OnConflictStrategy;
import java.util.StringJoiner;
/**
* SQL statement generator interface.
*
* @author RollW
*/
public interface SQLGenerator extends SQLEscaper {
/**
* Return insertion statement.
*
* @param tableName table name
* @param valueArgs column names (in order)
* @return insertion statement.
*/
String insert(String tableName, String... valueArgs);
String insert(String tableName, OnConflictStrategy onConflict, String... valueArgs);
String delete(String tableName, String... conditions);
String update(String tableName, String[] whereConditions, String[] valueArgs);
String update(String tableName, OnConflictStrategy onConflict, String[] whereConditions, String[] valueArgs);
default String placeHolders(int argsCount) {
StringJoiner joiner = new StringJoiner(", ");
for (int i = 0; i < argsCount; i++) {
joiner.add("?");
}
return joiner.toString();
}
}