org.openanzo.server.repository.querybuilder
Interface ObjectGrounding.RdbColumn

All Superinterfaces:

ObjectGrounding

All Known Implementing Classes:

LiteralGrounding

Enclosing interface:

ObjectGrounding

public static interface ObjectGrounding.RdbColumn
extends ObjectGrounding

Interface for ObjectGroundings that can: convert to and from database values and RDF objects. generate SQL value constraints from RDF query constraints (RDF triple patterns with a specified object). limit generating SQL constraints to cases where the value type of the RDF object and the database column are compatible.

Author:

Joe Betz

Nested Class Summary

Nested classes/interfaces inherited from interface org.openanzo.server.repository.querybuilder.ObjectGrounding

ObjectGrounding.FixedRdfValue, ObjectGrounding.FixedValue, ObjectGrounding.RdbColumn

Field Summary

Fields inherited from interface org.openanzo.server.repository.querybuilder.ObjectGrounding

RdfValue, Resource

Method Summary

java.lang.Long	getId(java.sql.ResultSet resultSet, java.lang.String columnName, CompositeNodeLayout nodeLayout) Get the ID of the node for the given column name in the resultset
IRdbTerm	getValue(java.sql.ResultSet resultSet, java.lang.String columnName, CompositeNodeLayout nodeLayout) Get the IRdbTerm value from the resultset for a given column name
java.lang.String	toSqlString(org.openrdf.model.Value value, CompositeNodeLayout nodeLayout) Convert this grounding into its sql equivalent

Methods inherited from interface org.openanzo.server.repository.querybuilder.ObjectGrounding

isValidObject

Method Detail

toSqlString

java.lang.String toSqlString(org.openrdf.model.Value value,
                             CompositeNodeLayout nodeLayout)

Convert this grounding into its sql equivalent

Parameters:

value - Value to convert

nodeLayout - CompositeNodeLayout to retrieve URIs and Node values

Returns:

the SQL string representation of this grounding

getValue

IRdbTerm getValue(java.sql.ResultSet resultSet,
                  java.lang.String columnName,
                  CompositeNodeLayout nodeLayout)
                  throws java.sql.SQLException

Get the IRdbTerm value from the resultset for a given column name

Parameters:

resultSet - resultset containing results of a query

columnName - name of column to retrieve from the resultset

nodeLayout - CompositeNodeLayout to retrieve URIs and Node values

Returns:

the IRdbTerm for the given column

Throws:

java.sql.SQLException

getId

java.lang.Long getId(java.sql.ResultSet resultSet,
                     java.lang.String columnName,
                     CompositeNodeLayout nodeLayout)
                     throws java.sql.SQLException

Get the ID of the node for the given column name in the resultset

Parameters:

resultSet - resultset containing results of a query

columnName - name of column to retrieve from the resultset

nodeLayout - CompositeNodeLayout to retrieve URIs and Node values

Returns:

the ID of the node for the given column name in the resultset

Throws:

java.sql.SQLException