Hi Phil,
I don't really have any query parsing/generation code to send you, because I'm
not using Lucene directly. I'm using the Grails Searchable Plugin,
which builds on both Lucene and Compass. The only relevant information
I can give you is my Grails domain classes which show how I've mapped
my classes to the Lucene search index.
@Searchable
class Student {
@SearchableProperty(accessor = 'property')
String name
static hasMany = [attendances: Attendance]
@SearchableId(accessor = 'property')
Long id
@SearchableComponent
Set<Attendance> getAttendances() {
return attendances
}
}
@Searchable(root = false)
class Attendance {
static searchable = true
static belongsTo = [student: Student, course: Course]
@SearchableProperty(accessor = 'property')
String mandatory = "Y"
@SearchableId(accessor = 'property')
Long id
@SearchableComponent
Course getCourse() {
return course
}
}
@Searchable(root = false)
class Course {
@SearchableProperty(accessor = 'property', name = "courseName")
String name
@SearchableId(accessor = 'property')
Long id
}
In order to execute a search I simply provide a Lucene query string such as
"+courseName:cooking AND +mandatory:Y"
Cheers,
Don
