Module de.chojo.sadu.queries

Package de.chojo.sadu.queries.execution.reading

Class ReaderImpl<V>

java.lang.Object

de.chojo.sadu.queries.execution.reading.ReaderImpl<V>

All Implemented Interfaces:

DataSourceProvider, ConnectionProvider, QueryProvider, Reader<V>

Direct Known Subclasses:

AutoMappedQuery, MappedQuery

public abstract class ReaderImpl<V>
extends Object
implements QueryProvider, Reader<V>

Constructor Summary

Constructors

Constructor	Description
ReaderImpl(CalledSingletonQueryImpl query)

Method Summary

Modifier and Type	Method	Description
List<V>	all()	Retrieves all elements from the Reader.
Result<List<V>>	allResults()	Retrieves all the results of the query.
Call	call()
Optional<V>	first()	Retrieves the first value from the query result and wraps it in an Optional object.
Result<V>	firstResult()	Retrieves a single result from the query.
protected abstract RowMapping<V>	mapper(ResultSet set)
protected MapperConfig	mapperConfig()
QueryImpl	query()
TokenizedQuery	sql()
AppendedQuery	storeAllAndAppend(String key)	Stores all query results and allows to create a new query.
AppendedQuery	storeOneAndAppend(String key)	Stores a query result and allows to create a new query.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface de.chojo.sadu.queries.api.base.QueryProvider

callConnection, configuration, source

Constructor Details

ReaderImpl

public ReaderImpl(CalledSingletonQueryImpl query)

Method Details

firstResult

public Result<V> firstResult()

Description copied from interface: Reader

Retrieves a single result from the query.

See Reader.first() for direct access

Specified by:

firstResult in interface Reader<V>

Returns:

the result of the query

allResults

public Result<List<V>> allResults()

Description copied from interface: Reader

Retrieves all the results of the query.

See Reader.all() for direct access

Specified by:

allResults in interface Reader<V>

Returns:

a Result object containing a List of results

storeOneAndAppend

public AppendedQuery storeOneAndAppend(String key)

Description copied from interface: Reader

Stores a query result and allows to create a new query.

Specified by:

storeOneAndAppend in interface Reader<V>

Parameters:

key - the key used to identify the stored result

Returns:

an AppendedQuery object that can execute another query with the same chain

storeAllAndAppend

public AppendedQuery storeAllAndAppend(String key)

Description copied from interface: Reader

Stores all query results and allows to create a new query.

Specified by:

storeAllAndAppend in interface Reader<V>

Parameters:

key - the key used to identify the stored result

Returns:

an AppendedQuery object that can execute another query with the same chain

mapper

protected abstract RowMapping<V> mapper(ResultSet set)
                                 throws SQLException

Throws:

SQLException

mapperConfig

protected MapperConfig mapperConfig()

first

public Optional<V> first()

Description copied from interface: Reader

Retrieves the first value from the query result and wraps it in an Optional object.

If the query returns no results, an empty Optional object is returned.

Specified by:

first in interface Reader<V>

Returns:

an Optional containing the first value from the query result, or an empty Optional if the query returns no results

all

public List<V> all()

Description copied from interface: Reader

Retrieves all elements from the Reader.

Specified by:

all in interface Reader<V>

Returns:

a List of all elements

sql

public TokenizedQuery sql()

call

public Call call()

query

public QueryImpl query()

Specified by:

query in interface QueryProvider