org.springframework.data.cassandra.core

Interface ExecutableSelectOperation

All Known Subinterfaces:

CassandraAdminOperations, CassandraOperations, FluentCassandraOperations

All Known Implementing Classes:

CassandraAdminTemplate, CassandraTemplate

public interface ExecutableSelectOperation

The ExecutableSelectOperation interface allows creation and execution of Cassandra SELECT operations in a fluent API style.

The starting domainType is used for mapping the Query provided via matching into the Cassandra-specific representation. By default, the originating domainType is also used for mapping back the result from the com.datastax.driver.core.Row. However, it is possible to define an different returnType via as for mapping the result.

By default, the table to operate on is derived from the initial domainType and can be defined there with the Table annotation as well. Using inTable allows a user to override the table name for the execution.

     
         query(Human.class)
             .inTable("star_wars")
             .as(Jedi.class)
             .matching(query(where("firstname").is("luke")))
             .all();
     
 

Since:

2.1

Author:

Mark Paluch, John Blum

See Also:

Query

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	ExecutableSelectOperation.ExecutableSelect<T> The ExecutableSelectOperation.ExecutableSelect interface provides methods for constructing SELECT query operations in a fluent way.
static interface	ExecutableSelectOperation.SelectWithProjection<T> Result type override (optional).
static interface	ExecutableSelectOperation.SelectWithQuery<T> Filtering (optional).
static interface	ExecutableSelectOperation.SelectWithTable<T> Table override (optional).
static interface	ExecutableSelectOperation.TerminatingSelect<T> Trigger SELECT query execution by calling one of the terminating methods.

Method Summary

Modifier and Type	Method and Description
<T> ExecutableSelectOperation.ExecutableSelect<T>	query(Class<T> domainType) Begin creating a Cassandra SELECT query operation for the given domainType.

Method Detail

query

<T> ExecutableSelectOperation.ExecutableSelect<T> query(Class<T> domainType)

Begin creating a Cassandra SELECT query operation for the given domainType.

Type Parameters:

T - type of the application domain object.

Parameters:

domainType - type to domain object to query; must not be null.

Returns:

new instance of ExecutableSelectOperation.ExecutableSelect.

Throws:

IllegalArgumentException - if domainType is null.

See Also:

ExecutableSelectOperation.ExecutableSelect