Examples of org.apache.tapestry.ValueEncoder

org.apache.tapestry.ValueEncoder
Used to convert server side values to client-side strings. This is used when generating a {@link org.apache.tapestry.EventContext} as part of a URL, or when components (such as {@link org.apache.tapestry.corelib.components.Select}) generated other client-side strings.
Often a custom implementation is needed for entity type objects, where the {@link #toClient(Object)} methodextracts a primary key, and the {@link #toValue(String)} re-acquires the corresponding entity object. @see SelectModel @see org.apache.tapestry.services.ValueEncoderSource @see PrimaryKeyEncoder


    public String toClient(Object value)
    {
        Defense.notNull(value, "value");


        ValueEncoder encoder = _valueEncoderSource.getValueEncoder(value.getClass());


        return encoder.toClient(value);
    }

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public class ContextValueEncoderImplTest extends InternalBaseTestCase
{
    @Test
    public void to_client()
    {
        ValueEncoder valueEncoder = mockValueEncoder();
        ValueEncoderSource source = mockValueEncoderSource();


        Long value = 23L;
        String encoded = "twentythree";

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    @Test
    public void to_value()
    {
        ValueEncoder valueEncoder = mockValueEncoder();
        ValueEncoderSource source = mockValueEncoderSource();


        Long value = 23L;
        String clientValue = "twentythree";

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        if (selected == null)
            selected = newList();
        else
            selected.clear();


        ValueEncoder encoder = _encoder;


        if (InternalUtils.isNonBlank(values))
        {
            for (String value : values.split(";"))
            {
                Object objectValue = encoder.toValue(value);


                selected.add(objectValue);
            }
        }

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        if (selected == null)
            selected = newList();
        else
            selected.clear();


        ValueEncoder encoder = _encoder;


        if (InternalUtils.isNonBlank(values))
        {
            for (String value : values.split(";"))
            {
                Object objectValue = encoder.toValue(value);


                selected.add(objectValue);
            }
        }

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Related Classes of org.apache.tapestry.ValueEncoder

org.apache.tapestry.corelib.components.Palette

org.apache.tapestry.internal.services.ContextValueEncoderImpl

org.apache.tapestry.internal.services.ContextValueEncoderImplTest

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