/**
* Creates a MappingsContext instance to handle a set of mappings operations using
* the same parameters
* @param m The mappings instance to use
* @param direction The mappings direction
* @param version The version of SIF to use for evaluating rule filters on field mappings
* @param elementDef The ElementDef representing the object type being mapped
* @return A new MappingsContext, initialized to map using the specified parameters
*/
public static MappingsContext Create(Mappings m, MappingDirection direction, SifVersion version,
IElementDef elementDef)
{
// Get the rules associated with the element type
MappingsContext mc = new MappingsContext(m, direction, version, elementDef);
ObjectMapping om = m.GetRules(elementDef.Name, true);
mc.AddRules(om);
return(mc);
}
/**
* Creates a MappingsContext instance to handle a set of mappings operations using
* the same parameters
* @param m The mappings instance to use
* @param direction The mappings direction
* @param version The version of SIF to use for evaluating rule filters on field mappings
* @param elementDef The ElementDef representing the object type being mapped
* @return A new MappingsContext, initialized to map using the specified parameters
*/
public static MappingsContext Create(Mappings m, MappingDirection direction, SifVersion version,
IElementDef elementDef)
{
// Get the rules associated with the element type
MappingsContext mc = new MappingsContext(m, direction, version, elementDef);
ObjectMapping om = m.GetRules(elementDef.Name, true);
mc.AddRules(om);
return mc;
}
/// <summary>
/// Adds SQLFields to represent each field rule in the specified MappingsContext
/// </summary>
/// <param name="context"></param>
/// <param name="dialect"></param>
public void AddFields( MappingsContext context, Dialect dialect )
{
foreach ( FieldMapping mapping in context.FieldMappings )
{
Rule rule = mapping.fRule;
if ( rule is XPathRule )
{
TypeConverter converter = null;
XPathRule xRule = (XPathRule) rule;
IElementDef targetDef = xRule.LookupTargetDef( context.ObjectDef );
if ( targetDef != null )
{
converter = targetDef.TypeConverter;
}
if ( converter == null )
{
converter = SifTypeConverters.STRING;
}
if ( mapping.ValueSetID != null )
{
ValueSet vs = context.Mappings.GetValueSet( mapping.ValueSetID, true );
if ( vs != null )
{
//Create the lookup table for generating the SQL lookup
StringBuilder buffer = new StringBuilder();
// e.g. CircRecord.PatronType{StudentPersonal=1;StaffPersonal=2}
//buffer.Append( tablePrefix );
buffer.Append( mapping.FieldName );
buffer.Append( '{' );
ValueSetEntry[] entries = vs.Entries;
for ( int a = 0; a < entries.Length; a++ )
{
if ( a > 0 )
{
buffer.Append( ';' );
}
buffer.Append( entries[a].Value );
buffer.Append( '=' );
;
buffer.Append( entries[a].Name );
}
buffer.Append( '}' );
SQLField f = new SQLField( buffer.ToString(), converter.DbType, dialect );
AddField( xRule.XPath, f );
continue;
}
}
SQLField field = new SQLField( mapping.FieldName, converter.DbType, dialect );
AddField( xRule.XPath, field );
}
}
}
/// <summary>
/// Adds SQLFields to represent each field rule in the specified MappingsContext.
/// </summary>
/// <param name="context"></param>
public void AddFields(MappingsContext context)
{
AddFields(context, SqlDialect.DEFAULT);
}
