When is it advisable to use query.contains() in Guidewire Query API?

Using query.contains() after other query.compare() operations against indexed columns is advisable because it optimizes query performance and accuracy within the Guidewire Query API. When query.compare() is executed first, it reduces the dataset size by filtering results based on indexed fields which are typically more efficient for lookups.

The indexed columns are designed to enhance search speed; therefore, when you subsequently apply query.contains(), it operates on a manageable and relevant subset of data. This practice leverages the efficiency of the indexing, ensuring that the contains condition is applied where there is already a reduced result set, leading to quicker and more efficient queries.

In contrast, applying query.contains() indiscriminately on a large unfiltered dataset may lead to performance inefficiencies and longer processing times, especially when the data set is large and complex. By sequencing query operations in this manner, developers can optimize the query processing in Guidewire applications.