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

java.lang.Object
  extended by org.mmbase.bridge.jsp.taglib.typehandler.AbstractTypeHandler
      extended by org.mmbase.bridge.jsp.taglib.typehandler.BooleanHandler
All Implemented Interfaces:
TypeHandler

public class BooleanHandler
extends AbstractTypeHandler

Since:
MMBase-1.6
Version:
$Id: BooleanHandler.java 41317 2010-03-10 06:50:04Z mark $
Author:
Pierre van Rooden
Javadoc:

Field Summary
 
Fields inherited from class org.mmbase.bridge.jsp.taglib.typehandler.AbstractTypeHandler
eh, gotEnumHandler, tag
 
Constructor Summary
BooleanHandler(FieldInfoTag tag)
           
 
Method Summary
protected  Object cast(Object value, Node node, Field field)
           
 Object getFieldValue(Node node, Field field)
          Returns the field value as specified by the client's post.
 String htmlInput(Node node, Field field, boolean search)
          Produces an form input field for the given Node, and Field.
 boolean useHtmlInput(Node node, Field field)
          returns true if setValue happened.
 String whereHtmlInput(Field field)
           
 Constraint whereHtmlInput(Field field, Query query)
          Adds search constraint to Query object.
 
Methods inherited from class org.mmbase.bridge.jsp.taglib.typehandler.AbstractTypeHandler
addExtraAttributes, checkHtmlInput, convertToValidate, findString, getClasses, getClassName, getEnumHandler, getFieldValue, getOperator, getOperator, getSearchValue, getSearchValue, getValue, htmlInputId, init, interpretEmptyAsNull, paramHtmlInput, prefix, prefixError, prefixID, setValue
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

BooleanHandler

public BooleanHandler(FieldInfoTag tag)
               throws JspTagException
Throws:
JspTagException
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
Overrides:
htmlInput in class AbstractTypeHandler
search - if true, then a search field is produced.
Throws:
JspTagException
See Also:
TypeHandler.htmlInput(Node, Field, boolean)

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
Overrides:
useHtmlInput in class AbstractTypeHandler
Throws:
JspTagException
See Also:
TypeHandler.useHtmlInput(Node, Field)

whereHtmlInput

public String whereHtmlInput(Field field)
                      throws JspTagException
Specified by:
whereHtmlInput in interface TypeHandler
Overrides:
whereHtmlInput in class AbstractTypeHandler
Returns:
Piece of SQL. null if no constraint.
Throws:
JspTagException
See Also:
TypeHandler.whereHtmlInput(Field)

whereHtmlInput

public Constraint whereHtmlInput(Field field,
                                 Query query)
                          throws JspTagException
Description copied from class: AbstractTypeHandler
Adds search constraint to Query object.

Specified by:
whereHtmlInput in interface TypeHandler
Overrides:
whereHtmlInput in class AbstractTypeHandler
Returns:
null if nothing to be searched, the constraint if constraint added
Throws:
JspTagException

cast

protected Object cast(Object value,
                      Node node,
                      Field field)
Overrides:
cast in class AbstractTypeHandler

getFieldValue

public Object getFieldValue(Node node,
                            Field field)
                     throws JspTagException
Description copied from class: AbstractTypeHandler
Returns the field value as specified by the client's post. This is only null if the client didn't post a thing. It can be empty if the client means null (depending on the value of AbstractTypeHandler.interpretEmptyAsNull(org.mmbase.bridge.Field)).

Overrides:
getFieldValue in class AbstractTypeHandler
Parameters:
node - This parameter could be used if the client does not fully specify the field's value (possible e.g. with Date fields). The existing specification could be used then.
Returns:
null if the client did not post, something else if it did. If the client meant to set null, this method should return the empty string.
Throws:
JspTagException


MMBase 2.0-SNAPSHOT - null