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

Modifier and Type	Field and Description
private BeanWrapper	beanWrapper
private java.lang.String[]	propertyNames

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

TYPE_UNKNOWN

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
java.lang.String[]	getReadablePropertyNames() Provide access to the property names of the wrapped bean.
int	getSqlType(java.lang.String paramName) Derives a default SQL type from the corresponding property type.
java.lang.Object	getValue(java.lang.String paramName) Return the parameter value for the requested named parameter.
boolean	hasValue(java.lang.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

Methods inherited from class java.lang.Object

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

Field Detail

beanWrapper

private final BeanWrapper beanWrapper

propertyNames

private java.lang.String[] propertyNames

Constructor Detail

BeanPropertySqlParameterSource

public BeanPropertySqlParameterSource(java.lang.Object object)

Create a new BeanPropertySqlParameterSource for the given bean.

Parameters:

object - the bean instance to wrap

Method Detail

hasValue

public boolean hasValue(java.lang.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

public java.lang.Object getValue(java.lang.String paramName)
                          throws java.lang.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:

java.lang.IllegalArgumentException - if there is no value for the requested parameter

getReadablePropertyNames

public java.lang.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

getSqlType

public int getSqlType(java.lang.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<?>)