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public interface StringValue
A simple converter to return a String representation of an object.
This class is intended to be the "small coin" to configure/format textual
cell content of concrete subclasses of ComponentProvider
.
F.i. to show a Contributor cell object as "Busywoman, Herta" implement a custom StringValue and use it in a text rendering provider.
StringValue stringValue = new StringValue() {
public String getString(Object value) {
if (!(value instanceof Contributor))
return TO_STRING.getString(value);
Contributor contributor = (Contributor) value;
return contributor.lastName + ", " + contributor.firstName;
}
};
ComponentProvider provider = new LabelProvider(stringValue);
table.setDefaultRenderer(Contributor.class,
new DefaultTableRenderer(provider));
PENDING: use a full-fledged Format instead? Would impose a higher burden onto implementors but could be re-used in editors.
ComponentProvider
,
LabelProvider
,
DefaultTableRenderer
,
DefaultListRenderer
,
DefaultTreeRenderer
Field Summary | |
---|---|
static StringValue |
EMPTY
Converter returning an empty String always. |
static StringValue |
TO_STRING
Default converter using the toString. |
Method Summary | |
---|---|
java.lang.String |
getString(java.lang.Object value)
Returns a string representation of the given value. |
Field Detail |
---|
static final StringValue TO_STRING
static final StringValue EMPTY
Method Detail |
---|
java.lang.String getString(java.lang.Object value)
PENDING JW: forgot - why not null return guaranteed?
value
- the object to present as a string
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