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

java.lang.Object
  org.mmbase.bridge.jsp.taglib.typehandler.AbstractTypeHandler
      org.mmbase.bridge.jsp.taglib.typehandler.BinaryHandler

All Implemented Interfaces:

TypeHandler

Direct Known Subclasses:

ByteHandler

public class BinaryHandler
extends AbstractTypeHandler

Since:

MMBase-1.8 (was named ByteHandler previously)

Version:

$Id: BinaryHandler.java 40137 2009-12-07 14:55:55Z michiel $

Author:

Gerard van de Looi, Michiel Meeuwissen

Javadoc:

Field Summary

Fields inherited from class org.mmbase.bridge.jsp.taglib.typehandler.AbstractTypeHandler

eh, gotEnumHandler, tag

Constructor Summary

BinaryHandler(FieldInfoTag tag)
Constructor

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 SerializableInputStream	getFieldValue(Node node, Field field) Returns the field value as specified by the client's post.
protected InputStream	getValue(Node node, String fieldName)
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)

Methods inherited from class org.mmbase.bridge.jsp.taglib.typehandler.AbstractTypeHandler

addExtraAttributes, cast, convertToValidate, findString, getClasses, getClassName, getEnumHandler, getFieldValue, getOperator, getOperator, getSearchValue, getSearchValue, htmlInputId, init, interpretEmptyAsNull, paramHtmlInput, prefix, prefixError, prefixID, setValue, whereHtmlInput

Methods inherited from class java.lang.Object

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

Constructor Detail

BinaryHandler

public BinaryHandler(FieldInfoTag tag)

Constructor

Parameters:

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

Overrides:

htmlInput in class AbstractTypeHandler

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

Throws:

JspTagException

See Also:

TypeHandler.htmlInput(Node, Field, boolean)

getValue

protected InputStream getValue(Node node,
                               String fieldName)

Overrides:

getValue in class AbstractTypeHandler

getFieldValue

protected SerializableInputStream getFieldValue(Node node,
                                                Field field)
                                         throws JspTagException

Returns the field value as specified by the client's post.

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

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

Overrides:

checkHtmlInput in class AbstractTypeHandler

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

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)