com.google.gwt.uibinder.attributeparsers
Class FieldReferenceConverter

java.lang.Object
  com.google.gwt.uibinder.attributeparsers.FieldReferenceConverter

public class FieldReferenceConverter
extends java.lang.Object

Deals with field references, e.g. the bits in braces here: <div class="{style.enabled} fancy {style.impressive}" />, by converting them to java expressions (with the help of a #Delegate).

A field reference is one or more segments separated by dots. The first segment is considered to be a reference to a ui field, and succeeding segments are method calls. So, "{able.baker.charlie}" becomes "able.baker().charlie()".

A field reference starts with '{' and is followed immediately by a character that can legally start a java identifier—that is a letter, $, or underscore. Braces not followed by such a character are left in place.

For convenience when dealing with generated CssResources, field segments with dashes are converted to camel case. That is, {able.baker-charlie} is the same as {able.bakerCharlie}

Opening braces may be escape by doubling them. That is, "{{foo}" will converted to "{foo}", with no field reference detected.

Nested Class Summary

static class

FieldReferenceConverter.IllegalFieldReferenceException May be thrown by the #Delegate for badly formatted input.

Method Summary

java.lang.String	convert(java.lang.String in, com.google.gwt.uibinder.attributeparsers.FieldReferenceConverter.Delegate delegate)
static boolean	hasFieldReferences(java.lang.String string)

Methods inherited from class java.lang.Object

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

Method Detail

hasFieldReferences

public static boolean hasFieldReferences(java.lang.String string)

Returns:

true if the given string holds one or more field references

convert

public java.lang.String convert(java.lang.String in,
                                com.google.gwt.uibinder.attributeparsers.FieldReferenceConverter.Delegate delegate)

Throws:

FieldReferenceConverter.IllegalFieldReferenceException - if the delegate does