> -----Original Message-----
> From: John McNally [mailto:[EMAIL PROTECTED]]
> yes, the spaces are there for efficiency. can you explain why this
> causes you problems with specific example? I don't want to
> change this,
> but if you make a good enough case for it, you might manage
> to persuade
> me. Not sure about others, of course.
This is because it feels weird to fill the table with spaces for some of the
comparison types and I don't like harcoding things :-)
Note an issue though, another indirection table can be made if there is a
need to...no big deal.
Another point... I feel the need to have a complex metadata description
(relation between fields and table), for example it could be interesting to
have something like:
PersonPeerMapBuilder.getColumnByField("address.city");
with a "NumberKey Person.getAddressId()" or such...and it goes from
MapBuilder to MapBuilder to retrieve the appropriate columns. Is it a weird
idea ? If no do you have an idea of how to do it ?
For now I did a simple thing, in the MapBuilder.vm I added 4 methods: 2
static and 2 instances, the instance are there for convenience so that I
have a generic way to use the map builder w/o using reflection to call the
static fields.
Of course it is not complete and does not work for joins... it is just plain
simple stupid for now.
public class ${table.JavaName}MapBuilder implements IMetadataMap, MapBuilder
[...]
/**
* return the field mapped to a given column name.
* @param column the name of the column (case-sensitive).
* @return the name of the associated field or <tt>null</tt> if it does
not exist.
*/
public static String getFieldByColumn(String column){
#foreach ($col in $table.Columns)
#set ( $tfc=$table.JavaName )
#set ( $cfc=$col.JavaName )
if ( get${tfc}_${cfc}().equals(column) ){
return "$cfc";
}
#end
return null;
}
/**
* return the column mapped to a given field name.
* @param column the name of the field (case-sensitive).
* @return the name of the associated column or <tt>null</tt> if it does
not exist.
*/
public static String getColumnByField(String field) {
#foreach ($col in $table.Columns)
#set ( $tfc=$table.JavaName )
#set ( $cfc=$col.JavaName )
if ( "${cfc}".equals(field) ){
return get${tfc}_${cfc}();
}
#end
return null;
}
// @see com.imediation.commons.om.IMetadataMap
// @see #getFieldByColumn(String)
public String getField(String column){
return ${table.JavaName}MapBuilder.getFieldByColumn(column);
}
// @see com.imediation.commons.om.IMetadataMap
// @see #getColumnByField(String)
public String getColumn(String field){
return ${table.JavaName}MapBuilder.getColumnByField(field);
}
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