JavaSQL - A Lightweight, Highly Customizable SQL Service

Key Features

• Connection Management

  • Automatically reconnects if connection is lost
  • Handles data usage during connection interruptions

• Automatic Table Creation

  • Creates tables based on definition in a Java Class

• Easy Data Handling

  • Automatic datatype conversion between database and Java
  • Rows as records
  • Columns as their Java datatypes

• SQL Injection Protection

  • Filters all input passed to built-in database methods

Default Database Methods

(src/main/SQL/Interface/DatabaseInterface.java)

Query Methods

• int countByValue(Column keyColumn, Object keyValue)
  • Returns the number of rows in the database table where the specified column matches the provided value.
• boolean existsByKey(Column keyColumn, Object keyValue)
  • Checks if at least one row exists in the database table where the specified column matches the provided value.
• boolean existsByKeys(ColumnValue<Column>... pairs)
  • Checks if at least one row exists in the database table where all specified column-value pairs match.
• boolean existsByAnyKeys(ColumnValue<Column>... pairs)
  • Checks if at least one row exists in the database table where any of the specified column-value pairs match.
• boolean existsByKeyAndAnyValues(ColumnValue<Column> keyPair, ColumnValue<Column>... pairs)
  • Checks if at least one row exists in the database table where the specified key column matches its value and any of the additional column-value pairs match.
• Optional<List<Row>> getByKey(Column keyColumn, Object keyValue)
  • Retrieves a list of all rows from the database table where the specified column matches the provided value.
• Optional<Row> getFirstByKey(Column keyColumn, Object keyValue)
  • Retrieves the first row from the database table where the specified column matches the provided value.
• Optional<Object> getFirstColumnByKey(Column keyColumn, Object keyValue, Column returnColumn)
  • Retrieves the value of the specified return column from the first row where the specified key column matches the provided value.
• Optional<Row> getByOrder(Column orderColumn, Order order)
  • Retrieves the first or last row from the database table, ordered by the specified column in ascending or descending order.
• Optional<Row> getByOrderAndKey(Column keyColumn, Object keyValue, Column orderColumn, Order order)
  • Retrieves the first or last row from the database table where the specified key column matches the provided value, ordered by the specified order column in ascending or descending order.
• Optional<Row> getByOrderAndKeys(Column orderColumn, Order order, ColumnValue<Column>... keyPairs)
  • Retrieves the first or last row from the database table where all specified column-value pairs match, ordered by the specified order column in ascending or descending order.
• Optional<Row> getByKeys(ColumnValue<Column>... keyPairs)
  • Retrieves the first row from the database table where all specified column-value pairs match.
• Optional<List<Object>> getColumnByValue(Column keyColumn, Object keyValue, Column returnColumn)
  • Retrieves a list of values from the specified return column for all rows where the specified key column matches the provided value.
• Optional<Object> getColumnByOrder(Column keyColumn, Column returnColumn, Order order)
  • Retrieves the value of the specified return column from the first or last row, ordered by the specified key column in ascending or descending order.
• boolean update(Column keyColumn, Object keyValue, Column updateColumn, Object updateValue)
  • Updates the specified column with the given update value for all rows where the specified key column matches the provided key value.
• boolean updateByOrder(Column keyColumn, Order order, Column updateColumn, Object updateValue)
  • Updates the specified column with the given update value for the first or last row, ordered by the specified key column in ascending or descending order.
• boolean update(Row record)
  • Updates the non-key columns of the specified row in the database table based on its key columns.
• boolean upsert(Row record)
  • Inserts a new row into the database table or updates an existing row if a duplicate key is found.

Modification Methods

• Boolean update(keyColumn, keyValue, updateColumn, updateValue)
  • Updates a specific value
• Boolean update(Row)
  • Updates an entire row
• Boolean updateByOrder(keyColumn, sortOrder, updateColumn, updateValue)
  • Updates based on sorting
• Boolean upsert(Row)
  • Inserts a row