org.mmbase.bridge.jsp.taglib.typehandler
Class DataTypeHandler

java.lang.Object
  org.mmbase.bridge.jsp.taglib.typehandler.DataTypeHandler

All Implemented Interfaces:

TypeHandler

public class DataTypeHandler
extends Object
implements TypeHandler

The DataType of the field can also itself specify how the input widgets must look like. This TypeHandler wraps this Handler object into a TypeHandler. Actually, as soon as all TypeHandler implementations are migrated to Handlers, this can become the only way to do it.

Since:

MMBase-1.9.1

Version:

$Id: DataTypeHandler.java 40933 2010-02-09 14:05:06Z michiel $

Author:

Michiel Meeuwisssen

Field Summary

protected Handler<String>	handler
protected Request	request

Constructor Summary

DataTypeHandler(Handler<String> h, FieldInfoTag tag)

Method Summary

String	checkHtmlInput(Node node, Field field, boolean errors) Produces a div, containing the error message for the current value, or the empty string if everything ok.
protected String	findString(Field field)
String	htmlInput(Node node, Field field, boolean search) Produces an form input field for the given Node, and Field.
String	htmlInputId(Node node, Field field)
void	init()
void	paramHtmlInput(ParamHandler handler, Field field)
boolean	useHtmlInput(Node node, Field field) returns true if setValue happened.
String	whereHtmlInput(Field field)
Constraint	whereHtmlInput(Field field, Query query)

Methods inherited from class java.lang.Object

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

Field Detail

handler

protected final Handler<String> handler

request

protected final Request request

Constructor Detail

DataTypeHandler

public DataTypeHandler(Handler<String> h,
                       FieldInfoTag tag)

Method Detail

htmlInput

public String htmlInput(Node node,
                        Field field,
                        boolean search)
                 throws JspTagException

Description copied from interface: TypeHandler

Produces an form input field for the given Node, and Field.

Specified by:

htmlInput in interface TypeHandler

search - if true, then a search field is produced.

Throws:

JspTagException

htmlInputId

public String htmlInputId(Node node,
                          Field field)
                   throws JspTagException

Specified by:

htmlInputId in interface TypeHandler

Throws:

JspTagException

checkHtmlInput

public String checkHtmlInput(Node node,
                             Field field,
                             boolean errors)
                      throws JspTagException

Description copied from interface: TypeHandler

Produces a div, containing the error message for the current value, or the empty string if everything ok.

Specified by:

checkHtmlInput in interface TypeHandler

errors - Whether to output the error messages (otherwises only invalidates form)

Throws:

JspTagException

useHtmlInput

public boolean useHtmlInput(Node node,
                            Field field)
                     throws JspTagException

Description copied from interface: TypeHandler

returns true if setValue happened.

Specified by:

useHtmlInput in interface TypeHandler

Throws:

JspTagException

whereHtmlInput

public String whereHtmlInput(Field field)
                      throws JspTagException

Specified by:

whereHtmlInput in interface TypeHandler

Returns:

Piece of SQL. null if no constraint.

Throws:

JspTagException

findString

protected final String findString(Field field)
                           throws JspTagException

Throws:

JspTagException

paramHtmlInput

public void paramHtmlInput(ParamHandler handler,
                           Field field)
                    throws JspTagException

Specified by:

paramHtmlInput in interface TypeHandler

Throws:

JspTagException

whereHtmlInput

public Constraint whereHtmlInput(Field field,
                                 Query query)
                          throws JspTagException

Specified by:

whereHtmlInput in interface TypeHandler

Throws:

JspTagException

init

public void init()

Specified by:

init in interface TypeHandler