Package com.vaadin.data.util.sqlcontainer.query.generator

Class StatementHelper

java.lang.Object

com.vaadin.data.util.sqlcontainer.query.generator.StatementHelper

All Implemented Interfaces:

Serializable

public class StatementHelper
extends Object
implements Serializable

StatementHelper is a simple helper class that assists TableQuery and the query generators in filling a PreparedStatement. The actual statement is generated by the query generator methods, but the resulting statement and all the parameter values are stored in an instance of StatementHelper. This class will also fill the values with correct setters into the PreparedStatement on request.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
StatementHelper()

Method Summary

Modifier and Type	Method	Description
void	addParameterValue(Object parameter)
void	addParameterValue(Object parameter, Class<?> type)
String	getQueryString()
protected boolean	handleUnrecognizedTypeNullValue(int i, PreparedStatement pstmt, Map<Integer,Class<?>> dataTypes)	Handle unrecognized null values.
void	setParameterValuesToStatement(PreparedStatement pstmt)
void	setQueryString(String queryString)

Methods inherited from class java.lang.Object

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

Constructor Detail

StatementHelper

public StatementHelper()

Method Detail

setQueryString

public void setQueryString(String queryString)

getQueryString

public String getQueryString()

addParameterValue

public void addParameterValue(Object parameter)

addParameterValue

public void addParameterValue(Object parameter,
                              Class<?> type)

setParameterValuesToStatement

public void setParameterValuesToStatement(PreparedStatement pstmt)
                                   throws SQLException

Throws:

SQLException

handleUnrecognizedTypeNullValue

protected boolean handleUnrecognizedTypeNullValue(int i,
                                                  PreparedStatement pstmt,
                                                  Map<Integer,Class<?>> dataTypes)
                                           throws SQLException

Handle unrecognized null values. Override this to handle null values for platform specific data types that are not handled by the default implementation of the StatementHelper.

Parameters:

i -

pstmt -

dataTypes2 -

Returns:

true if handled, false otherwise

Throws:

SQLException