Package org.springframework.jdbc.core.namedparam

Class BeanPropertySqlParameterSource

java.lang.Object

org.springframework.jdbc.core.namedparam.AbstractSqlParameterSource

org.springframework.jdbc.core.namedparam.BeanPropertySqlParameterSource

All Implemented Interfaces:

SqlParameterSource

public class BeanPropertySqlParameterSource
extends AbstractSqlParameterSource

SqlParameterSource implementation that obtains parameter values from bean properties of a given JavaBean object. The names of the bean properties have to match the parameter names.

Uses a Spring BeanWrapper for bean property access underneath.

Since:

2.0

Author:

Thomas Risberg, Juergen Hoeller

See Also:

• NamedParameterJdbcTemplate
• BeanWrapper

Field Summary

Fields inherited from interface org.springframework.jdbc.core.namedparam.SqlParameterSource

TYPE_UNKNOWN

Constructor Summary

Constructors

Constructor	Description
BeanPropertySqlParameterSource(Object object)	Create a new BeanPropertySqlParameterSource for the given bean.

Method Summary

Modifier and Type	Method	Description
String[]	getParameterNames()	Enumerate all available parameter names if possible.
String[]	getReadablePropertyNames()	Provide access to the property names of the wrapped bean.
int	getSqlType(String paramName)	Derives a default SQL type from the corresponding property type.
Object	getValue(String paramName)	Return the parameter value for the requested named parameter.
boolean	hasValue(String paramName)	Determine whether there is a value for the specified named parameter.

Methods inherited from class org.springframework.jdbc.core.namedparam.AbstractSqlParameterSource

getTypeName, registerSqlType, registerTypeName, toString

Methods inherited from class java.lang.Object

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

Constructor Details

BeanPropertySqlParameterSource

public BeanPropertySqlParameterSource(Object object)

Create a new BeanPropertySqlParameterSource for the given bean.

Parameters:

object - the bean instance to wrap

Method Details

hasValue

public boolean hasValue(String paramName)

Description copied from interface: SqlParameterSource

Determine whether there is a value for the specified named parameter.

Parameters:

paramName - the name of the parameter

Returns:

whether there is a value defined

getValue

@Nullable
public Object getValue(String paramName)
                throws IllegalArgumentException

Description copied from interface: SqlParameterSource

Return the parameter value for the requested named parameter.

Parameters:

paramName - the name of the parameter

Returns:

the value of the specified parameter

Throws:

IllegalArgumentException - if there is no value for the requested parameter

getSqlType

public int getSqlType(String paramName)

Derives a default SQL type from the corresponding property type.

Specified by:

getSqlType in interface SqlParameterSource

Overrides:

getSqlType in class AbstractSqlParameterSource

Parameters:

paramName - the name of the parameter

Returns:

the SQL type of the parameter, or TYPE_UNKNOWN if not registered

See Also:

• StatementCreatorUtils.javaTypeToSqlParameterType(java.lang.Class<?>)

getParameterNames

@NonNull
public String[] getParameterNames()

Description copied from interface: SqlParameterSource

Enumerate all available parameter names if possible.

This is an optional operation, primarily for use with SimpleJdbcInsert and SimpleJdbcCall.

Returns:

the array of parameter names, or null if not determinable

See Also:

• SqlParameterSourceUtils.extractCaseInsensitiveParameterNames(org.springframework.jdbc.core.namedparam.SqlParameterSource)

getReadablePropertyNames

public String[] getReadablePropertyNames()

Provide access to the property names of the wrapped bean. Uses support provided in the PropertyAccessor interface.

Returns:

an array containing all the known property names