diff options
| -rw-r--r-- | document/src/vespa/document/fieldvalue/structuredfieldvalue.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/document/src/vespa/document/fieldvalue/structuredfieldvalue.h b/document/src/vespa/document/fieldvalue/structuredfieldvalue.h index 867aabca537..54036566a26 100644 --- a/document/src/vespa/document/fieldvalue/structuredfieldvalue.h +++ b/document/src/vespa/document/fieldvalue/structuredfieldvalue.h @@ -94,6 +94,11 @@ protected: virtual bool hasFieldValue(const Field&) const = 0; virtual void removeFieldValue(const Field&) = 0; virtual FieldValue::UP getFieldValue(const Field&) const = 0; + /** + * Fetches the value of the field and return true if present. + * The document, or the buffer the document was constructed from must live longer than the value. + * This restriction allows lightweight object representation and is significantly faster in many cases. + */ virtual bool getFieldValue(const Field& field, FieldValue& value) const = 0; virtual void setFieldValue(const Field&, FieldValue::UP value) = 0; void setFieldValue(const Field & field, const FieldValue & value); |