[LUCY-105] FieldType

• Type: New Feature
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Component/s: Plan
• Assignee: Marvin Humphrey
• Reporter: Marvin Humphrey
• Created: 08/Jun/10 03:34
• Updated: 10/Jun/10 03:22
• Resolved: 10/Jun/10 03:22

Description

Lucy::Plan::FieldType is an abstract class used to define field traits and
behaviors. Unlike Lucene, field definitions apply to the entire index; it is
not possible to have conflicting definitions across multiple segments.

The initial FieldType class hierarchy will look like this:

Lucy::Plan::FieldType
    Lucy::Plan::TextType
    Lucy::Plan::BlobType
    Lucy::Plan::NumericType
        Lucy::Plan::IntegerType
            Lucy::Plan::Int32Type
            Lucy::Plan::Int64Type
        Lucy::Plan::FloatType
            Lucy::Plan::Float32Type
            Lucy::Plan::Float64Type

FieldTypes get fully serialized as JSON within the Schema file, including
Similarity objects (for indexed fields) and analyzers (for analyzed TextType
fields).