HsqlEpsgDatabase (Geotools modules 31-SNAPSHOT API)

Object
- HsqlEpsgDatabase

```
public class HsqlEpsgDatabase
extends Object
```
This utility class knows everything there is to know about the care and feeding of our pet EPSG database. This utility class is used to hold logic previously associated with our own custom DataSource.
The EPSG database can be downloaded from http://www.epsg.org. The SQL scripts (modified for the HSQL syntax as explained here) are bundled into this plugin. The database version is given in the edition attribute of the authority. The HSQL database is read only.

Since:

2.4

Author:

Jody Garnett

Field Summary

Fields
Modifier and Type Field Description

static String DATABASE_NAME
The database name.

static String DIRECTORY_KEY
The key for fetching the database directory from system properties.

Constructor Summary

Constructors
Constructor Description

HsqlEpsgDatabase()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static DataSource`	`createDataSource()`	Creates a DataSource that is set up and ready to go.
`static DataSource`	`createDataSource(File directory)`
`static DataSource`	`createDataSource(Hints hints)`

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - DIRECTORY_KEY
```
public static final String DIRECTORY_KEY
```
    The key for fetching the database directory from system properties.
    
    See Also:
    
    Constant Field Values
  - DATABASE_NAME
```
public static final String DATABASE_NAME
```
    The database name.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - HsqlEpsgDatabase
```
public HsqlEpsgDatabase()
```
- Method Detail
  - createDataSource
```
public static DataSource createDataSource()
                                   throws SQLException
```
    Creates a DataSource that is set up and ready to go.
    This method pays attention to the system property "EPSG-HSQL.directory" and makes use of the default database name "EPSG".
    
    Throws:
    
    SQLException
  - createDataSource
```
public static DataSource createDataSource(Hints hints)
                                   throws FactoryException
```
    Throws:
    
    FactoryException
  - createDataSource
```
public static DataSource createDataSource(File directory)
                                   throws SQLException
```
    Throws:
    
    SQLException