Google Maps

Building the JDBC URL

After installing the license, access the connection management page by executing the command java -jar kingswaysoft.jdbc.jar. Enter the necessary details, and the program will automatically generate the JDBC connection URL. Users can click Test Connection to test the generated URL and Copy to Clipboard to copy the connection string for use within the application where the JDBC driver is being used.

Note: If the license is not installed, you can still use the connection manager to generate a JDBC URL; however, the 'Test Connection' feature will be disabled.

General Page

The General page of Google Maps Connection Manager allows you to specify the general settings of the connection:

General Settings

Google Maps API

Select the Google Maps API you want to use based on your application's needs.

The Kingswaysoft JDBC Driver supports the following Google Maps APIs:

• Address Validation
• Air Quality
• Places
• Pollen
• Solar

Authentication Methods for Google Maps

Advanced Settings Page

Using the JDBC Driver

Explore detailed examples in this section that demonstrate the application of JDBC classes such as Connection, Statement, and ResultSet to effectively manage interactions with Google Maps data. This section covers the use of regular statements and prepared statements for executing complex or frequently executed queries.

Executing Statements

Once you've connected from your code (see Connecting with DriverManager and Connecting with DataSource), you can execute SQL statements using the Statement class. Refer to the Executing Prepared Statements section for information on how to execute parameterized statements.

SELECT

Use the Statement class's generic execute method or the executeQuery method to execute SQL statements that return data. To retrieve the results of a query, you would then call the getResultSet method of the Statement.

String sql = "SELECT * FROM places WHERE name = 'places/ChIJs5ydyTiuEmsR0fRSlU0C7k0'";
try {
    ResultSet resultSet = statement.executeQuery(sql);
    LOGGER.info(resultSet.toString());
} catch (SQLException e) {
    LOGGER.severe(e.toString());
}

CALL Function

You can use either the generic execute method or the executeQuery method of the Statement class to execute function through a "CALL" query. Call statements are formatted similarly to Insert statements but require the function name. The field to output can be specified using an OUT parameter located in the columns list prefixed by "OUT". You can specify multiple OUT fields. The fields that can be used in the call function can be obtained from system.functions and system.functions.columns.

For example, the corresponding Call Statement for INSERT INTO repository (input-name, input-owner) VALUES ('name', 'owner') is CALL repository (input-name, input-owner) VALUES ('name', 'owner').

The results of SQL queries are saved in a ResultSet. You can retrieve the ResultSet after execution to view the OUT fields. If no OUT fields are specified in the call function statement, all OUT fields defined in system.functions.columns will be returned. If OUT fields are specified in the call function statement, only the specified OUT fields will be returned.

String sql = "CALL places.places.photos.getMedia(name,maxHeightPx,maxWidthPx,skipHttpRedirect) VALUES ('places/ChIJs5ydyTiuEmsR0fRSlU0C7k0/photos/AeeoHcLquODrx8N-AZGcsZ1r9ENiYTaF0XjAyV9uRQffrR2hFjHT2DWTL1SwgIyeHXrwzsIPRfRrmKtxG7DKjrSbhb_1DanPGyTht5mzttxEmeTkx0OevkFUuMuvg8dMx6FYsaWGhlUi5_E_ssytrf8ybRSf4B5yQ8MxoUeiNmcnGMELhXQIFicxZLO_h6AZEJ8hwpI5WjrUCiahj8vgdKOClZhcg6S4TrYj0Mmfj8qI9PT0eLs2oG5ihOCo7tBaTMAhe4dKwVSxk0tUAKNdzFur8POolB_S4W0X-QgzvB3EVII1qazfTlOU4uN7k1lEQKJhioEX5RK2A9zFjbnEVCMy_5qw2Ia7Sqy6OCxsVPMpEJwnEPFqYDAK5zcatfLXk2pMfbjGC205fpgRArQPE9Qy6ys3GEdwJ0K2_LNlwcO0DtHzdg/media', 4000, 3000, true)";
try {
    ResultSet resultSet = statement.executeQuery(sql);
    LOGGER.info(resultSet.toString());
} catch (SQLException e) {
    LOGGER.severe(e.toString());
}

name,photoUri
places/ChIJs5ydyTiuEmsR0fRSlU0C7k0/photos/AeeoHcLquODrx8N-AZGcsZ1r9ENiYTaF0XjAyV9uRQffrR2hFjHT2DWTL1SwgIyeHXrwzsIPRfRrmKtxG7DKjrSbhb_1DanPGyTht5mzttxEmeTkx0OevkFUuMuvg8dMx6FYsaWGhlUi5_E_ssytrf8ybRSf4B5yQ8MxoUeiNmcnGMELhXQIFicxZLO_h6AZEJ8hwpI5WjrUCiahj8vgdKOClZhcg6S4TrYj0Mmfj8qI9PT0eLs2oG5ihOCo7tBaTMAhe4dKwVSxk0tUAKNdzFur8POolB_S4W0X-QgzvB3EVII1qazfTlOU4uN7k1lEQKJhioEX5RK2A9zFjbnEVCMy_5qw2Ia7Sqy6OCxsVPMpEJwnEPFqYDAK5zcatfLXk2pMfbjGC205fpgRArQPE9Qy6ys3GEdwJ0K2_LNlwcO0DtHzdg/media,https://lh3.googleusercontent.com/place-photos/AJnk2czPUVnZJdogvUCcfvVH897D_uPKgs51-hsyRYwepZDpVAqj-bmrSP-msmRCAtglqHVVLYr1vv0dh07w-_U5KFk9td18H3SbyJrz0c9PiBvhNXC4lSS3cgb9R19C6zvH70g5tHrapX9FOouM5g=s4800-w3000-h3024

Executing Prepared Statements

Using a PreparedStatement can improve performance when you need to execute a SQL statement multiple times with different parameters. Unlike a Statement object, a PreparedStatement object is provided with a SQL statement when it is created, which can then be executed with different values each time. This special type of statement is derived from the more general class, Statement.

Below are the steps outlining how to execute a prepared statement:

1. Create a PreparedStatement: Use the prepareStatement method of the Connection class to instantiate a PreparedStatement. Refer to Connecting with DriverManager or Connecting with DataSource for information related to establishing connections.
2. Set Parameters: Declare parameters by calling the corresponding setter method of the PreparedStatement. Note: The parameter indices start at 1.
3. Execute the Statement: Use the generic execute or executeUpdate method of the PreparedStatement.
4. Retrieve Results: Call the getResultSet method of the Prepared Statement to obtain the query results, which will be returned as a ResultSet.
5. Iterate Over the Result Set: Use the next method of the ResultSet to iterate through the results. To obtain column information, utilize the ResultSetMetaData class. Instantiate a ResultSetMetaData object by calling the getMetaData method of the ResultSet.

SELECT

Use the Statement class's generic execute method or the executeQuery method to execute SQL statements that return data.

The results of SQL queries are saved in a ResultSet. You can retrieve the ResultSet after execution to view the retrieved data.

String sql = "SELECT * FROM places WHERE name = ?";
try {
    PreparedStatement ps = connection.prepareStatement(sql);
    ps.setString(1, "places/ChIJs5ydyTiuEmsR0fRSlU0C7k0");
    
    boolean ret = ps.execute(sql);
    if (ret) {
        ResultSet rs = ps.getResultSet();
        LOGGER.info(rs.toString());
    }
} catch (SQLException e) {
    LOGGER.severe(e.toString());
}

CALL Function

You can use either the generic execute method or the executeQuery method of the Statement class to execute function through a "CALL" query. Call statements are formatted similarly to Insert statements but require the function name. The field to output can be specified using an OUT parameter located in the columns list prefixed by "OUT". You can specify multiple OUT fields. The fields that can be used in the call function can be obtained from system.functions and system.functions.columns.

For example, the corresponding Call Statement for INSERT INTO repository (input-name, input-owner) VALUES ('name', 'owner') is CALL repository (input-name, input-owner) VALUES ('name', 'owner').

The results of SQL queries are saved in a ResultSet. You can retrieve the ResultSet after execution to view the OUT fields. If no OUT fields are specified in the call function statement, all OUT fields defined in system.functions.columns will be returned. If OUT fields are specified in the call function statement, only the specified OUT fields will be returned.

String sql = "CALL places.places.photos.getMedia (name,maxHeightPx,maxWidthPx,skipHttpRedirect) VALUES (?, ?, ?, ?)";
try {
    PreparedStatement ps = connection.prepareStatement(sql);
    ps.setString(1, "places/ChIJs5ydyTiuEmsR0fRSlU0C7k0/photos/AeeoHcLquODrx8N-AZGcsZ1r9ENiYTaF0XjAyV9uRQffrR2hFjHT2DWTL1SwgIyeHXrwzsIPRfRrmKtxG7DKjrSbhb_1DanPGyTht5mzttxEmeTkx0OevkFUuMuvg8dMx6FYsaWGhlUi5_E_ssytrf8ybRSf4B5yQ8MxoUeiNmcnGMELhXQIFicxZLO_h6AZEJ8hwpI5WjrUCiahj8vgdKOClZhcg6S4TrYj0Mmfj8qI9PT0eLs2oG5ihOCo7tBaTMAhe4dKwVSxk0tUAKNdzFur8POolB_S4W0X-QgzvB3EVII1qazfTlOU4uN7k1lEQKJhioEX5RK2A9zFjbnEVCMy_5qw2Ia7Sqy6OCxsVPMpEJwnEPFqYDAK5zcatfLXk2pMfbjGC205fpgRArQPE9Qy6ys3GEdwJ0K2_LNlwcO0DtHzdg/media");
    ps.setInt(2, 4000);
    ps.setInt(3, 3000);
    ps.setBoolean(4, true);
    ps.execute();
    LOGGER.info(ps.getResultSet().toString());
} catch (SQLException e) {
    e.printStackTrace();
}

name,photoUri
places/ChIJs5ydyTiuEmsR0fRSlU0C7k0/photos/AeeoHcLquODrx8N-AZGcsZ1r9ENiYTaF0XjAyV9uRQffrR2hFjHT2DWTL1SwgIyeHXrwzsIPRfRrmKtxG7DKjrSbhb_1DanPGyTht5mzttxEmeTkx0OevkFUuMuvg8dMx6FYsaWGhlUi5_E_ssytrf8ybRSf4B5yQ8MxoUeiNmcnGMELhXQIFicxZLO_h6AZEJ8hwpI5WjrUCiahj8vgdKOClZhcg6S4TrYj0Mmfj8qI9PT0eLs2oG5ihOCo7tBaTMAhe4dKwVSxk0tUAKNdzFur8POolB_S4W0X-QgzvB3EVII1qazfTlOU4uN7k1lEQKJhioEX5RK2A9zFjbnEVCMy_5qw2Ia7Sqy6OCxsVPMpEJwnEPFqYDAK5zcatfLXk2pMfbjGC205fpgRArQPE9Qy6ys3GEdwJ0K2_LNlwcO0DtHzdg/media,https://lh3.googleusercontent.com/place-photos/AJnk2czPUVnZJdogvUCcfvVH897D_uPKgs51-hsyRYwepZDpVAqj-bmrSP-msmRCAtglqHVVLYr1vv0dh07w-_U5KFk9td18H3SbyJrz0c9PiBvhNXC4lSS3cgb9R19C6zvH70g5tHrapX9FOouM5g=s4800-w3000-h3024

Metadata Discovery

This section provides examples on how to retrieve table and column metadata using the getTables and getColumns methods from the DatabaseMetaData interface. These are essential for discovering database structures.

Tables

The getTables method from the DatabaseMetaData interface can be used to retrieve a list of tables.

This method only retrieves tables that are not write-only.

To get a list of tables which include write-only tables, query the table [system.tables](/products/jdbc-driver-pack/help-manual/advancedfeatures#systemtables).

try {
    ResultSet rs = connection.getMetaData().getTables(null, null, null, null);
    LOGGER.info("\r\n" + rs.toString());
} catch (SQLException e) {
    LOGGER.severe(e.getMessage());
}

TABLE_CAT,TABLE_SCHEM,TABLE_NAME,TABLE_TYPE,REMARKS
null,null,places,Table,
null,null,system.columns,Table,
null,null,system.functions,Table,
null,null,system.functions.columns,Table,
null,null,system.tables,Table,

The getTables method returns the following metadata columns:

Columns

Use the getColumns method of the DatabaseMetaData interface to retrieve detailed information about database columns. To narrow the results to a specific table, specify the table name using the parameter table_name.

This method returns columns only for tables that are not write-only.

To get columns for tables which are write-only, query the table [system.columns](/products/jdbc-driver-pack/help-manual/advancedfeatures#systemcolumns).

try {
    ResultSet rs = connection.getMetaData().getColumns(null, null, "places", null);
    LOGGER.info(rs.toString());
} catch (SQLException e) {
    e.printStackTrace();
}

TABLE_CAT,TABLE_SCHEM,TABLE_NAME,COLUMN_NAME,DATA_TYPE,TYPE_NAME,COLUMN_SIZE,BUFFER_LENGTH,DECIMAL_DIGITS,NUM_PREC_RADIX,NULLABLE,REMARKS,COLUMN_DEF,SQL_DATA_TYPE,SQL_DATETIME_SUB,CHAR_OCTET_LENGTH,ORDINAL_POSITION,IS_NULLABLE,IS_AUTOINCREMENT,IS_GENERATEDCOLUMN,DTS_TYPE
null,null,places,accessibilityOptions.wheelchairAccessibleEntrance,16,BOOLEAN,null,null,0,0,null,null,null,16,null,null,null,null,null,null,DT_BOOL
null,null,places,accessibilityOptions.wheelchairAccessibleParking,16,BOOLEAN,null,null,0,0,null,null,null,16,null,null,null,null,null,null,DT_BOOL
null,null,places,accessibilityOptions.wheelchairAccessibleRestroom,16,BOOLEAN,null,null,0,0,null,null,null,16,null,null,null,null,null,null,DT_BOOL
null,null,places,accessibilityOptions.wheelchairAccessibleSeating,16,BOOLEAN,null,null,0,0,null,null,null,16,null,null,null,null,null,null,DT_BOOL
null,null,places,addressComponents,12,VARCHAR,null,null,0,0,null,null,null,12,null,null,null,null,null,null,DT_WSTR
null,null,places,addressDescriptor.areas,12,VARCHAR,null,null,0,0,null,null,null,12,null,null,null,null,null,null,DT_WSTR
null,null,places,addressDescriptor.landmarks,12,VARCHAR,null,null,0,0,null,null,null,12,null,null,null,null,null,null,DT_WSTR
null,null,places,adrFormatAddress,12,VARCHAR,null,null,0,0,null,null,null,12,null,null,null,null,null,null,DT_WSTR
null,null,places,allowsDogs,16,BOOLEAN,null,null,0,0,null,null,null,16,null,null,null,null,null,null,DT_BOOL
null,null,places,areaSummary.contentBlocks,12,VARCHAR,null,null,0,0,null,null,null,12,null,null,null,null,null,null,DT_WSTR
.......................

The getColumns method returns the following columns:

Primary Keys

The getPrimaryKeys method in the DatabaseMetaData interface is used to retrieve metadata about primary keys for a given table in Google Maps.

try {
    Connection connection = buildRestConnectionFromDriverManager();
    ResultSet resultSet = connection.getMetaData().getPrimaryKeys(null, null, "places");
    LOGGER.info("\r\n" + resultSet.toString());
    Assertions.assertNotNull(resultSet);
} catch (SQLException e) {
    LOGGER.severe(e.getMessage());
}

TABLE_NAME,PRIMARY_COLUMN_NAME
places,id

The getPrimaryKeys method returns the following columns:

Connection Settings