Table of Contents

Schema validation

IndexSchema declares the expected field set and type per field. When attached to the writer, every AddDocument call is validated.

Define a schema

using Rowles.LeanLucene.Index.Indexer;
using Rowles.LeanLucene.Document.Fields;

var schema = new IndexSchema { StrictMode = true }
    .Add(new FieldMapping("id",    FieldType.String) { IsStored = true, IsRequired = true })
    .Add(new FieldMapping("title", FieldType.Text)   { IsRequired = true })
    .Add(new FieldMapping("price", FieldType.Numeric));

var config = new IndexWriterConfig { Schema = schema };

Strict vs lax mode

  • StrictMode = false (default): unknown fields are accepted silently.
  • StrictMode = true: unknown fields throw SchemaValidationException.

Required fields, when missing, throw regardless of mode. Type mismatches always throw.

Per-field analyser

A FieldMapping can override the writer's default analyser for that field by setting Analyser.

See also

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