org.sql2o

类 Query

java.lang.Object

org.sql2o.Query

所有已实现的接口:

AutoCloseable

public class Query
extends Object
implements AutoCloseable

Represents a sql2o statement. With sql2o, all statements are instances of the Query class.

构造器概要

构造器

构造器和说明
Query(Connection connection, String queryText, boolean returnGeneratedKeys)
Query(Connection connection, String queryText, String[] columnNames)

方法概要

限定符和类型	方法和说明
Query	addColumnMapping(String columnName, String propertyName)
Query	addParameter(String name, boolean value)
Query	addParameter(String name, Boolean value)
<T> Query	addParameter(String name, Class<T> parameterClass, T value)
Query	addParameter(String name, Collection<?> values) Set an array parameter.
Query	addParameter(String name, InputStream value)
Query	addParameter(String name, int value)
Query	addParameter(String name, Integer value)
Query	addParameter(String name, long value)
Query	addParameter(String name, Long value)
Query	addParameter(String name, Object... values) Set an array parameter.
Query	addParameter(String name, Object value)
Query	addParameter(String name, String value)
Query	addParameter(String name, Time value)
Query	addParameter(String name, Timestamp value)
Query	addParameter(String name, UUID value)
Query	addToBatch() Adds a set of parameters to this Query object's batch of commands.
<A> List<A>	addToBatchGetKeys(Class<A> klass) Adds a set of parameters to this Query object's batch of commands and returns any generated keys.
Query	bind(Object pojo)
void	close()
<T> List<T>	executeAndFetch(Class<T> returnType)
<T> List<T>	executeAndFetch(ResultSetHandler<T> resultSetHandler)
<T> List<T>	executeAndFetch(ResultSetHandlerFactory<T> factory)
<T> T	executeAndFetchFirst(Class<T> returnType)
<T> T	executeAndFetchFirst(ResultSetHandler<T> resultSetHandler)
<T> T	executeAndFetchFirst(ResultSetHandlerFactory<T> resultSetHandlerFactory)
<T> ResultSetIterable<T>	executeAndFetchLazy(Class<T> returnType) Read a collection lazily.
<T> ResultSetIterable<T>	executeAndFetchLazy(ResultSetHandler<T> resultSetHandler) Read a collection lazily.
<T> ResultSetIterable<T>	executeAndFetchLazy(ResultSetHandlerFactory<T> resultSetHandlerFactory) Read a collection lazily.
Table	executeAndFetchTable()
LazyTable	executeAndFetchTableLazy()
Connection	executeBatch()
Object	executeScalar()
<V> V	executeScalar(Class<V> returnType)
<V> V	executeScalar(Converter<V> converter)
<T> List<T>	executeScalarList(Class<T> returnType)
Connection	executeUpdate()
Map<String,String>	getColumnMappings() column mapping
Connection	getConnection()
int	getCurrentBatchRecords()
int	getMaxBatchRecords()
String	getName()
Map<String,List<Integer>>	getParamNameToIdxMap()
ResultSetHandlerFactoryBuilder	getResultSetHandlerFactoryBuilder()
boolean	isAutoDeriveColumnNames()
boolean	isCaseSensitive()
boolean	isExplicitExecuteBatchRequired()
boolean	isThrowOnMappingFailure()
Query	setAutoDeriveColumnNames(boolean autoDeriveColumnNames)
Query	setCaseSensitive(boolean caseSensitive)
Query	setColumnMappings(Map<String,String> mappings)
Query	setMaxBatchRecords(int maxBatchRecords) Sets the number of batched commands this Query allows to be added before implicitly calling executeBatch() from addToBatch().
Query	setName(String name)
void	setResultSetHandlerFactoryBuilder(ResultSetHandlerFactoryBuilder resultSetHandlerFactoryBuilder)
Query	throwOnMappingFailure(boolean throwOnMappingFailure)
String	toString()
Query	withParams(Object... paramValues)

从类继承的方法 java.lang.Object

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

构造器详细资料

Query

public Query(Connection connection,
             String queryText,
             boolean returnGeneratedKeys)

Query

public Query(Connection connection,
             String queryText,
             String[] columnNames)

方法详细资料

toString

public String toString()

覆盖:

toString 在类中 Object

isCaseSensitive

public boolean isCaseSensitive()

setCaseSensitive

public Query setCaseSensitive(boolean caseSensitive)

isAutoDeriveColumnNames

public boolean isAutoDeriveColumnNames()

setAutoDeriveColumnNames

public Query setAutoDeriveColumnNames(boolean autoDeriveColumnNames)

throwOnMappingFailure

public Query throwOnMappingFailure(boolean throwOnMappingFailure)

isThrowOnMappingFailure

public boolean isThrowOnMappingFailure()

getConnection

public Connection getConnection()

getName

public String getName()

setName

public Query setName(String name)

getResultSetHandlerFactoryBuilder

public ResultSetHandlerFactoryBuilder getResultSetHandlerFactoryBuilder()

setResultSetHandlerFactoryBuilder

public void setResultSetHandlerFactoryBuilder(ResultSetHandlerFactoryBuilder resultSetHandlerFactoryBuilder)

getParamNameToIdxMap

public Map<String,List<Integer>> getParamNameToIdxMap()

addParameter

public <T> Query addParameter(String name,
                              Class<T> parameterClass,
                              T value)

withParams

public Query withParams(Object... paramValues)

addParameter

public Query addParameter(String name,
                          Object value)

addParameter

public Query addParameter(String name,
                          InputStream value)

addParameter

public Query addParameter(String name,
                          int value)

addParameter

public Query addParameter(String name,
                          Integer value)

addParameter

public Query addParameter(String name,
                          long value)

addParameter

public Query addParameter(String name,
                          Long value)

addParameter

public Query addParameter(String name,
                          String value)

addParameter

public Query addParameter(String name,
                          Timestamp value)

addParameter

public Query addParameter(String name,
                          Time value)

addParameter

public Query addParameter(String name,
                          boolean value)

addParameter

public Query addParameter(String name,
                          Boolean value)

addParameter

public Query addParameter(String name,
                          UUID value)

addParameter

public Query addParameter(String name,
                          Object... values)

Set an array parameter.
For example:

     createQuery("SELECT * FROM user WHERE id IN(:ids)")
      .addParameter("ids", 4, 5, 6)
      .executeAndFetch(...)
 

will generate the query : SELECT * FROM user WHERE id IN(4,5,6)

It is not possible to use array parameters with a batch PreparedStatement: since the text query passed to the PreparedStatement depends on the number of parameters in the array, array parameters are incompatible with batch mode.

If the values array is empty, null will be set to the array parameter: SELECT * FROM user WHERE id IN(NULL)

抛出:

NullPointerException - if values parameter is null

addParameter

public Query addParameter(String name,
                          Collection<?> values)

Set an array parameter.
See addParameter(String, Object...) for details

bind

public Query bind(Object pojo)

close

public void close()

指定者:

close 在接口中 AutoCloseable

executeAndFetchLazy

public <T> ResultSetIterable<T> executeAndFetchLazy(Class<T> returnType)

Read a collection lazily. Generally speaking, this should only be used if you are reading MANY results and keeping them all in a Collection would cause memory issues. You MUST call ResultSetIterable.close() when you are done iterating.

参数:

returnType - type of each row

返回:

iterable results

executeAndFetchLazy

public <T> ResultSetIterable<T> executeAndFetchLazy(ResultSetHandlerFactory<T> resultSetHandlerFactory)

Read a collection lazily. Generally speaking, this should only be used if you are reading MANY results and keeping them all in a Collection would cause memory issues. You MUST call ResultSetIterable.close() when you are done iterating.

参数:

resultSetHandlerFactory - factory to provide ResultSetHandler

返回:

iterable results

executeAndFetchLazy

public <T> ResultSetIterable<T> executeAndFetchLazy(ResultSetHandler<T> resultSetHandler)

Read a collection lazily. Generally speaking, this should only be used if you are reading MANY results and keeping them all in a Collection would cause memory issues. You MUST call ResultSetIterable.close() when you are done iterating.

参数:

resultSetHandler - ResultSetHandler

返回:

iterable results

executeAndFetch

public <T> List<T> executeAndFetch(Class<T> returnType)

executeAndFetch

public <T> List<T> executeAndFetch(ResultSetHandler<T> resultSetHandler)

executeAndFetch

public <T> List<T> executeAndFetch(ResultSetHandlerFactory<T> factory)

executeAndFetchFirst

public <T> T executeAndFetchFirst(Class<T> returnType)

executeAndFetchFirst

public <T> T executeAndFetchFirst(ResultSetHandler<T> resultSetHandler)

executeAndFetchFirst

public <T> T executeAndFetchFirst(ResultSetHandlerFactory<T> resultSetHandlerFactory)

executeAndFetchTableLazy

public LazyTable executeAndFetchTableLazy()

executeAndFetchTable

public Table executeAndFetchTable()

executeUpdate

public Connection executeUpdate()

executeScalar

public Object executeScalar()

executeScalar

public <V> V executeScalar(Class<V> returnType)

executeScalar

public <V> V executeScalar(Converter<V> converter)

executeScalarList

public <T> List<T> executeScalarList(Class<T> returnType)

setMaxBatchRecords

public Query setMaxBatchRecords(int maxBatchRecords)

Sets the number of batched commands this Query allows to be added before implicitly calling executeBatch() from addToBatch().
When set to 0, executeBatch is not called implicitly. This is the default behaviour.
When using this, please take care about calling executeBatch() after finished adding all commands to the batch because commands may remain unexecuted after the last addToBatch() call. Additionally, if fetchGeneratedKeys is set, then previously generated keys will be lost after a batch is executed.

抛出:

IllegalArgumentException - Thrown if the value is negative.

getMaxBatchRecords

public int getMaxBatchRecords()

getCurrentBatchRecords

public int getCurrentBatchRecords()

返回:

The current number of unexecuted batched statements

isExplicitExecuteBatchRequired

public boolean isExplicitExecuteBatchRequired()

返回:

True if maxBatchRecords is set and there are unexecuted batched commands or maxBatchRecords is not set

addToBatch

public Query addToBatch()

Adds a set of parameters to this Query object's batch of commands.
If maxBatchRecords is more than 0, executeBatch is called upon adding that many commands to the batch.
The current number of batched commands is accessible via the getCurrentBatchRecords() method.

addToBatchGetKeys

public <A> List<A> addToBatchGetKeys(Class<A> klass)

Adds a set of parameters to this Query object's batch of commands and returns any generated keys.
If maxBatchRecords is more than 0, executeBatch is called upon adding that many commands to the batch. This method will return any generated keys if fetchGeneratedKeys is set.
The current number of batched commands is accessible via the getCurrentBatchRecords() method.

executeBatch

public Connection executeBatch()
                        throws Sql2oException

抛出:

Sql2oException

getColumnMappings

public Map<String,String> getColumnMappings()

column mapping

setColumnMappings

public Query setColumnMappings(Map<String,String> mappings)

addColumnMapping

public Query addColumnMapping(String columnName,
                              String propertyName)