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MapSqlParameterSource (Spring Framework API 2.0) - Spring Framework 2.0.5 API 文档英文版

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org.springframework.jdbc.core.namedparam
Class MapSqlParameterSource

java.lang.Object
  org.springframework.jdbc.core.namedparam.AbstractSqlParameterSource
      org.springframework.jdbc.core.namedparam.MapSqlParameterSource

All Implemented Interfaces:

SqlParameterSource

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public class MapSqlParameterSource
extends AbstractSqlParameterSource

SqlParameterSource implementation that holds a given Map of parameters.

This class is intended for passing in a simple Map of parameter values to the methods of the NamedParameterJdbcTemplate class.

The addValue methods on this class will make adding several values easier. The methods return a reference to the MapSqlParameterSource itself, so you can chain several method calls together within a single statement.

Since:

2.0

Author:

Thomas Risberg, Juergen Hoeller

See Also:

addValue(String, Object), addValue(String, Object, int), AbstractSqlParameterSource.registerSqlType(java.lang.String, int), NamedParameterJdbcTemplate

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Field Summary

 

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

 

Constructor Summary
MapSqlParameterSource()           Create an empty MapSqlParameterSource, with values to be added via addValue.
MapSqlParameterSource(Map values)           Create a new MapSqlParameterSource based on a Map.
MapSqlParameterSource(String paramName, Object value)           Create a new MapSqlParameterSource, with one value comprised of the supplied arguments.

 

Method Summary
MapSqlParameterSource	addValue(String paramName, Object value)           Add a parameter to this parameter source.
MapSqlParameterSource	addValue(String paramName, Object value, int sqlType)           Add a parameter to this parameter source.
MapSqlParameterSource	addValues(Map values)           Add a Map of parameters to this parameter source.
Object	getValue(String paramName)           Return the parameter value for the requested named parameter.
Map	getValues()           Expose the current parameter values as read-only Map.
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
getSqlType, registerSqlType

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

MapSqlParameterSource

public MapSqlParameterSource()

Create an empty MapSqlParameterSource, with values to be added via addValue.

See Also:

addValue(String, Object)

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MapSqlParameterSource

public MapSqlParameterSource(String paramName,
                             Object value)

Create a new MapSqlParameterSource, with one value comprised of the supplied arguments.

Parameters:

paramName - the name of the parameter

value - the value of the parameter

See Also:

addValue(String, Object)

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MapSqlParameterSource

public MapSqlParameterSource(Map values)

Create a new MapSqlParameterSource based on a Map.

Parameters:

values - a Map holding existing parameter values (can be null)

Method Detail

addValue

public MapSqlParameterSource addValue(String paramName,
                                      Object value)

Add a parameter to this parameter source.

Parameters:

paramName - the name of the parameter

value - the value of the parameter

Returns:

a reference to this parameter source, so it's possible to chain several calls together

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addValue

public MapSqlParameterSource addValue(String paramName,
                                      Object value,
                                      int sqlType)

Add a parameter to this parameter source.

Parameters:

paramName - the name of the parameter

value - the value of the parameter

sqlType - the SQL type of the parameter

Returns:

a reference to this parameter source, so it's possible to chain several calls together

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addValues

public MapSqlParameterSource addValues(Map values)

Add a Map of parameters to this parameter source.

Parameters:

values - a Map holding existing parameter values (can be null)

Returns:

a reference to this parameter source, so it's possible to chain several calls together

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getValues

public Map getValues()

Expose the current parameter values as read-only Map.

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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

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getValue

public Object getValue(String paramName)

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

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