Package com.github.collinalpert.java2db.queries

Interface Queryable<T>

All Superinterfaces:

SingleQueryable<T>

All Known Subinterfaces:

AsyncQueryable<T>

All Known Implementing Classes:

AsyncEntityProjectionQuery, AsyncEntityQuery, EntityProjectionQuery, EntityQuery

public interface Queryable<T>
extends SingleQueryable<T>

Author:

Collin Alpert

Method Summary

Modifier and Type	Method	Description
T[]	toArray()	Executes a new query and returns the result as an array.
List<T>	toList()	Executes the query and returns the result as a List.
<K> Map<K,T>	toMap(Function<T,K> keyMapping)	Executes a new query and returns the result as a Map.
<K,V> Map<K,V>	toMap(Function<T,K> keyMapping, Function<T,V> valueMapping)	Executes a new query and returns the result as a Map.
Stream<T>	toStream()	Executes the query and returns the result as a Stream.

Methods inherited from interface com.github.collinalpert.java2db.queries.SingleQueryable

first, getQuery

Method Detail

toList

List<T> toList()

Executes the query and returns the result as a List.

Returns:

A list of entities representing the result rows.

toStream

Stream<T> toStream()

Executes the query and returns the result as a Stream.

Returns:

A list of entities representing the result rows.

toArray

T[] toArray()

Executes a new query and returns the result as an array.

Returns:

An array of entities representing the result rows.

toMap

<K> Map<K,T> toMap(Function<T,K> keyMapping)

Executes a new query and returns the result as a Map. This method is equivalent to the call Queryable#toMap(keyMapping, x -> x).

Type Parameters:

K - The type of the field representing the keys.

Parameters:

keyMapping - The field representing the keys of the map.

Returns:

A map containing the result of the query.

toMap

<K,V> Map<K,V> toMap(Function<T,K> keyMapping,
                                 Function<T,V> valueMapping)

Executes a new query and returns the result as a Map.

Type Parameters:

K - The type of the field representing the keys.

V - The type of the field representing the values.

Parameters:

keyMapping - The field representing the keys of the map.

valueMapping - The field representing the values of the map.

Returns:

A map containing the result of the query.