java.lang.Object
- mil.nga.geopackage.extension.BaseExtension
- - mil.nga.geopackage.extension.CrsWktExtension

```
public class CrsWktExtension
extends BaseExtension
```
OGC Well known text representation of Coordinate Reference Systems extension
http://www.geopackage.org/spec/#extension_crs_wkt

Since:

1.1.8

Author:

osbornb

Field Summary

Fields
Modifier and Type	Field	Description
`static String`	`DEFINITION_COLUMN_DEF`	Extension definition column definition
`static String`	`DEFINITION_COLUMN_NAME`	Extension definition column name
`static String`	`DEFINITION_V_1`	Extension version 1 definition URL
`static String`	`DEFINITION_V_1_1`	Extension version 1.1 definition URL
`static String`	`EPOCH_COLUMN_DEF`	Extension epoch column definition
`static String`	`EPOCH_COLUMN_NAME`	Extension epoch column name
`static String`	`EXTENSION_NAME`	Extension name
`static String`	`NAME`	Name

Fields inherited from class mil.nga.geopackage.extension.BaseExtension
extensionsDao, geoPackage

Constructor Summary

Constructors
Constructor Description

CrsWktExtension(GeoPackageCore geoPackage)
Constructor

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getDefinition(long srsId)`	Get the extension definition
`Double`	`getEpoch(long srsId)`	Get the extension epoch
`String`	`getExtensionName(CrsWktExtensionVersion version)`	Get the extension name for the version
`List<Extensions>`	`getOrCreate()`	Get or create the latest version of the extension
`List<Extensions>`	`getOrCreate(CrsWktExtensionVersion version)`	Get or create the version of the extension
`boolean`	`has()`	Determine if the GeoPackage has any version of the extension
`boolean`	`has(CrsWktExtensionVersion version)`	Determine if the GeoPackage has the version of the extension
`boolean`	`hasDefinitionColumn()`	Determine if the GeoPackage SRS table has the extension definition column
`boolean`	`hasEpochColumn()`	Determine if the GeoPackage SRS table has the extension epoch column
`boolean`	`hasMinimum(CrsWktExtensionVersion version)`	Determine if the GeoPackage has at least the minimum version of the extension
`void`	`removeExtension()`	Remove the extension.
`void`	`removeExtension(CrsWktExtensionVersion version)`	Remove the extension.
`void`	`updateDefinition(long srsId, String definition)`	Update the extension definition
`void`	`updateEpoch(long srsId, Double epoch)`	Update the extension epoch

Methods inherited from class mil.nga.geopackage.extension.BaseExtension
createDao, get, getExtensions, getExtensions, getExtensionsDao, getGeoPackage, getOrCreate, has, has, has, verifyWritable

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

- Field Detail
  - NAME
```
public static final String NAME
```
    Name
    
    See Also:
    
    Constant Field Values
  - EXTENSION_NAME
```
public static final String EXTENSION_NAME
```
    Extension name
    
    See Also:
    
    Constant Field Values
  - DEFINITION_V_1
```
public static final String DEFINITION_V_1
```
    Extension version 1 definition URL
  - DEFINITION_V_1_1
```
public static final String DEFINITION_V_1_1
```
    Extension version 1.1 definition URL
  - DEFINITION_COLUMN_NAME
```
public static final String DEFINITION_COLUMN_NAME
```
    Extension definition column name
    
    Since:
    
    6.6.0
  - DEFINITION_COLUMN_DEF
```
public static final String DEFINITION_COLUMN_DEF
```
    Extension definition column definition
    
    Since:
    
    6.6.0
  - EPOCH_COLUMN_NAME
```
public static final String EPOCH_COLUMN_NAME
```
    Extension epoch column name
    
    Since:
    
    6.6.0
  - EPOCH_COLUMN_DEF
```
public static final String EPOCH_COLUMN_DEF
```
    Extension epoch column definition
    
    Since:
    
    6.6.0
- Constructor Detail
  - CrsWktExtension
```
public CrsWktExtension(GeoPackageCore geoPackage)
```
    Constructor
    
    Parameters:
    
    geoPackage - GeoPackage
- Method Detail
  - getOrCreate
```
public List<Extensions> getOrCreate()
```
    Get or create the latest version of the extension
    
    Returns:
    
    extension
    
    Since:
    
    6.6.0
  - getOrCreate
```
public List<Extensions> getOrCreate(CrsWktExtensionVersion version)
```
    Get or create the version of the extension
    
    Parameters:
    
    version - extension version
    
    Returns:
    
    extension
    
    Since:
    
    6.6.0
  - has
```
public boolean has()
```
    Determine if the GeoPackage has any version of the extension
    
    Returns:
    
    true if has extension
  - hasMinimum
```
public boolean hasMinimum(CrsWktExtensionVersion version)
```
    Determine if the GeoPackage has at least the minimum version of the extension
    
    Parameters:
    
    version - extension version
    
    Returns:
    
    true if has extension minimum
    
    Since:
    
    6.6.0
  - has
```
public boolean has(CrsWktExtensionVersion version)
```
    Determine if the GeoPackage has the version of the extension
    
    Parameters:
    
    version - extension version
    
    Returns:
    
    true if has extension
    
    Since:
    
    6.6.0
  - getExtensionName
```
public String getExtensionName(CrsWktExtensionVersion version)
```
    Get the extension name for the version
    
    Parameters:
    
    version - extension version
    
    Returns:
    
    extension name
    
    Since:
    
    6.6.0
  - updateDefinition
```
public void updateDefinition(long srsId,
                             String definition)
```
    Update the extension definition
    
    Parameters:
    
    srsId - srs id
    
    definition - definition
  - getDefinition
```
public String getDefinition(long srsId)
```
    Get the extension definition
    
    Parameters:
    
    srsId - srs id
    
    Returns:
    
    definition
  - updateEpoch
```
public void updateEpoch(long srsId,
                        Double epoch)
```
    Update the extension epoch
    
    Parameters:
    
    srsId - srs id
    
    epoch - epoch
    
    Since:
    
    6.6.0
  - getEpoch
```
public Double getEpoch(long srsId)
```
    Get the extension epoch
    
    Parameters:
    
    srsId - srs id
    
    Returns:
    
    epoch
    
    Since:
    
    6.6.0
  - hasDefinitionColumn
```
public boolean hasDefinitionColumn()
```
    Determine if the GeoPackage SRS table has the extension definition column
    
    Returns:
    
    true if has column
    
    Since:
    
    6.6.0
  - hasEpochColumn
```
public boolean hasEpochColumn()
```
    Determine if the GeoPackage SRS table has the extension epoch column
    
    Returns:
    
    true if has column
    
    Since:
    
    6.6.0
  - removeExtension
```
public void removeExtension()
```
    Remove the extension. Leaves the column and values.
    
    Since:
    
    3.2.0
  - removeExtension
```
public void removeExtension(CrsWktExtensionVersion version)
```
    Remove the extension. Leaves the column and values.
    
    Parameters:
    
    version - extension version
    
    Since:
    
    6.6.0

Class CrsWktExtension

Field Summary

Fields inherited from class mil.nga.geopackage.extension.BaseExtension

Constructor Summary

Method Summary

Methods inherited from class mil.nga.geopackage.extension.BaseExtension

Methods inherited from class java.lang.Object

Field Detail

NAME

EXTENSION_NAME

DEFINITION_V_1

DEFINITION_V_1_1

DEFINITION_COLUMN_NAME

DEFINITION_COLUMN_DEF

EPOCH_COLUMN_NAME

EPOCH_COLUMN_DEF

Constructor Detail

CrsWktExtension

Method Detail

getOrCreate

getOrCreate

has

hasMinimum

has

getExtensionName

updateDefinition

getDefinition

updateEpoch

getEpoch

hasDefinitionColumn

hasEpochColumn

removeExtension

removeExtension