org.hibernate.spatial.criterion

Class ExpressionUtil

java.lang.Object

org.hibernate.spatial.criterion.ExpressionUtil

public class ExpressionUtil
extends Object

This class assists in the formation of a SQL-fragment in the various spatial query expressions.

Method Summary

Modifier and Type	Method and Description
static String	findColumn(String propertyName, org.hibernate.Criteria criteria, org.hibernate.criterion.CriteriaQuery criteriaQuery) Determines the column name corresponding to the specified property path.
static SpatialDialect	getSpatialDialect(org.hibernate.criterion.CriteriaQuery criteriaQuery, SpatialFunction function) Determines the SpatialDialect for the specified CriteriaQuery, and checks if the specified function is supported.

Methods inherited from class java.lang.Object

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

Method Detail

getSpatialDialect

public static SpatialDialect getSpatialDialect(org.hibernate.criterion.CriteriaQuery criteriaQuery,
                                               SpatialFunction function)

Determines the SpatialDialect for the specified CriteriaQuery, and checks if the specified function is supported.

Parameters:

criteriaQuery - The CriteriaQuery for which the dialect is sought

function - The function for which to check support

Returns:

The SpatialDialect associated with the specified CriteriaQuery

Throws:

org.hibernate.HibernateException - If the dialect for the specified CriteriaQuery is not a SpatialDialect. or the specified SpatialFunction is not supported by the dialect.

findColumn

public static String findColumn(String propertyName,
                                org.hibernate.Criteria criteria,
                                org.hibernate.criterion.CriteriaQuery criteriaQuery)

Determines the column name corresponding to the specified property path.

Parameters:

propertyName - The property path

criteria - The criteria

criteriaQuery - The criteria query

Returns:

The column name

Throws:

org.hibernate.HibernateException - If the property could not be resolved, or more than one column is mapped by the property path.