liquibase.ext.spatial.sqlgenerator

Class WktConversionUtils

java.lang.Object

liquibase.ext.spatial.sqlgenerator.WktConversionUtils

public class WktConversionUtils
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static Pattern	EWKT_PATTERN The EWKT Pattern instance.
static String	EWKT_REGEX The PostGIS EWKT regular expression.
static String	SRID_REGEX The SRID regular expression.
static String	WKT_REGEX The WKT regular expression.

Method Summary

Methods

Modifier and Type	Method and Description
static String	convertToFunction(String wkt, String srid, Database database, WktInsertOrUpdateGenerator generator) Converts the given Well-Known Text and SRID to the appropriate function call for the database.
static Object	handleColumnValue(Object oldValue, Database database, WktInsertOrUpdateGenerator generator) If the old value is a geometry or a Well-Known Text, convert it to the appropriate new value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SRID_REGEX

public static final String SRID_REGEX

The SRID regular expression.

See Also:

Constant Field Values

WKT_REGEX

public static final String WKT_REGEX

The WKT regular expression.

See Also:

Constant Field Values

EWKT_REGEX

public static final String EWKT_REGEX

The PostGIS EWKT regular expression.

See Also:

Constant Field Values

EWKT_PATTERN

public static final Pattern EWKT_PATTERN

The EWKT Pattern instance.

Method Detail

handleColumnValue

public static Object handleColumnValue(Object oldValue,
                       Database database,
                       WktInsertOrUpdateGenerator generator)

If the old value is a geometry or a Well-Known Text, convert it to the appropriate new value. Otherwise, this method returns the old value.

Parameters:

oldValue - the old value.

database - the database instance.

Returns:

the new value.

convertToFunction

public static String convertToFunction(String wkt,
                       String srid,
                       Database database,
                       WktInsertOrUpdateGenerator generator)

Converts the given Well-Known Text and SRID to the appropriate function call for the database.

Parameters:

wkt - the Well-Known Text string.

srid - the SRID string which may be an empty string.

database - the database instance.

Returns:

the string that converts the WKT to a database-specific geometry.