Projections

Creates a projection of a String whose value is computed from the given expression. Projection with an expression can be used in the following contexts:

Creates a projection of a property whose value is computed from the given expression. Projection with an expression can be used in the following contexts:

Creates a projection of a String whose value is computed from the given expression. Projection with an expression can be used in the following contexts:

Creates a projection of a property whose value is computed from the given expression. Projection with an expression can be used in the following contexts:

Creates a projection of a property whose value is equal to the {@code $$SEARCH_META} variable. for use with {@link Aggregates#search(SearchOperator, SearchOptions)} / {@link Aggregates#search(SearchCollector, SearchOptions)}. Calling this method is equivalent to calling {@link #computed(String, Object)} with {@code "$$SEARCH_META"} as the second argument.

Creates a projection of a property whose value is equal to the {@code $$SEARCH_META} variable. for use with {@link Aggregates#search(SearchOperator, SearchOptions)} / {@link Aggregates#search(SearchCollector, SearchOptions)}. Calling this method is equivalent to calling {@link #computed(String, Object)} with {@code "$$SEARCH_META"} as the second argument.

Creates a projection that includes for the given property only the first element of the array value of that field that matches the given query filter.

Creates a projection that includes for the given property only the first element of the array value of that field that matches the given query filter.

Creates a projection that excludes all of the given properties.

Creates a projection that excludes the _id field. This suppresses the automatic inclusion of _id that is the default, even when other fields are explicitly included.

Creates a projection that combines the list of projections into a single one. If there are duplicate keys, the last one takes precedence.

Creates a projection that includes all of the given properties.

Creates a $meta projection for the given property

Creates a $meta projection for the given property

Creates a searchHighlights projection for the given property, for use with {@link Aggregates#search(SearchOperator, SearchOptions)} / {@link Aggregates#search(SearchCollector, SearchOptions)}. Calling this method is equivalent to calling {@link #meta(String, String)} with {@code "searchHighlights"} as the argument.

Creates a searchScore projection for the given property, for use with {@link Aggregates#search(SearchOperator, SearchOptions)} / {@link Aggregates#search(SearchCollector, SearchOptions)}. Calling this method is equivalent to calling {@link #meta(String, String)} with {@code "searchScore"} as the argument.

Creates a textScore projection for the given property, for use with text queries. Calling this method is equivalent to calling {@link #meta(String)} with {@code "textScore"} as the argument.

Creates a vectorSearchScore projection for the given property, for use with {@link Aggregates#vectorSearch(FieldSearchPath, Iterable, String, long, VectorSearchOptions)} . Calling this method is equivalent to calling {@link #meta(String, String)} with {@code "vectorSearchScore"} as the argument.

In order to write $p.p2

Creates a projection to the given property of a slice of the array value of that field.

Creates a projection that includes for the given property only the first element of an array that matches the query filter. This is referred to as the positional $ operator.

The projection of the property.

The projection of the property. This is used in an aggregation pipeline to reference a property from a path.