Examples with Instance com.haulmont.chile.core.model.Instance used on opensource projects

Example 1 with Instance

use of com.haulmont.chile.core.model.Instance in project cuba by cuba-platform.

the class InstanceUtils method getInstanceName.

/**
 * @return Instance name as defined by {@link com.haulmont.chile.core.annotations.NamePattern}
 * or <code>toString()</code>.
 * @param instance  instance
 */
public static String getInstanceName(Instance instance) {
    checkNotNullArgument(instance, "instance is null");
    NamePatternRec rec = parseNamePattern(instance.getMetaClass());
    if (rec == null) {
        return instance.toString();
    } else {
        if (rec.methodName != null) {
            try {
                Method method = instance.getClass().getMethod(rec.methodName);
                Object result = method.invoke(instance);
                return (String) result;
            } catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) {
                throw new RuntimeException("Error getting instance name", e);
            }
        }
        // lazy initialized messages, used only for enum values
        Messages messages = null;
        Object[] values = new Object[rec.fields.length];
        for (int i = 0; i < rec.fields.length; i++) {
            Object value = instance.getValue(rec.fields[i]);
            if (value == null) {
                values[i] = "";
            } else if (value instanceof Instance) {
                values[i] = getInstanceName((Instance) value);
            } else if (value instanceof EnumClass) {
                if (messages == null) {
                    messages = AppBeans.get(Messages.NAME);
                }
                values[i] = messages.getMessage((Enum) value);
            } else {
                values[i] = value;
            }
        }
        return String.format(rec.format, values);
    }
}

Example 2 with Instance

use of com.haulmont.chile.core.model.Instance in project cuba by cuba-platform.

the class TableModelAdapter method getValueExIgnoreUnfetched.

protected Object getValueExIgnoreUnfetched(Instance instance, String[] properties) {
    Object currentValue = null;
    Instance currentInstance = instance;
    for (String property : properties) {
        if (currentInstance == null) {
            break;
        }
        if (!PersistenceHelper.isLoaded(currentInstance, property)) {
            LoggerFactory.getLogger(TableModelAdapter.class).warn("Ignored unfetched attribute {} of instance {} in Table cell", property, currentInstance);
            return null;
        }
        currentValue = currentInstance.getValue(property);
        if (currentValue == null) {
            break;
        }
        currentInstance = currentValue instanceof Instance ? (Instance) currentValue : null;
    }
    return currentValue;
}

Example 3 with Instance

use of com.haulmont.chile.core.model.Instance in project cuba by cuba-platform.

the class LinkColumnHelper method initColumn.

public static void initColumn(Table table, final String propertyName, final Handler handler) {
    final ComponentsFactory componentsFactory = AppBeans.get(ComponentsFactory.NAME);
    table.addGeneratedColumn(propertyName, new Table.ColumnGenerator() {

        @Override
        public Component generateCell(final Entity entity) {
            // //process properties like building.house.room
            String[] props = propertyName.split("\\.");
            Instance nestedEntity = entity;
            for (int i = 0; i < props.length - 1; i++) {
                nestedEntity = nestedEntity.getValue(props[i]);
                if (nestedEntity == null) {
                    break;
                }
            }
            final Object value = (nestedEntity == null) ? null : nestedEntity.getValue(props[props.length - 1]);
            if (value != null) {
                Button button = componentsFactory.createComponent(Button.class);
                button.setStyleName("link");
                button.setAction(new AbstractAction("open") {

                    @Override
                    public void actionPerform(Component component) {
                        handler.onClick(entity);
                    }

                    @Override
                    public String getCaption() {
                        String str;
                        Datatype datatype = Datatypes.get(value.getClass());
                        if (datatype != null) {
                            UserSessionSource sessionSource = AppBeans.get(UserSessionSource.NAME);
                            str = datatype.format(value, sessionSource.getLocale());
                        } else {
                            str = value.toString();
                        }
                        return str;
                    }
                });
                button.setStyleName("link");
                return button;
            }
            return null;
        }
    });
}

Example 4 with Instance

use of com.haulmont.chile.core.model.Instance in project cuba by cuba-platform.

the class DesktopPickerField method updateComponent.

protected void updateComponent(Object value) {
    String text;
    if (value == null) {
        text = "";
    } else {
        if (value instanceof Instance) {
            if (captionMode.equals(CaptionMode.ITEM)) {
                text = ((Instance) value).getInstanceName();
            } else {
                Object propertyValue = ((Instance) value).getValue(captionProperty);
                MetaClass valueClass = metadata.getClassNN(value.getClass());
                MetaProperty property = valueClass.getProperty(captionProperty);
                text = metadataTools.format(propertyValue, property);
            }
        } else {
            text = value.toString();
        }
    }
    impl.setValue(text);
    prevTextValue = text;
    updateMissingValueState();
}

Example 5 with Instance

use of com.haulmont.chile.core.model.Instance in project cuba by cuba-platform.

the class InstanceUtils method getValueEx.

/**
 * Get value of an attribute according to the rules described in {@link Instance#getValueEx(String)}.
 * @param instance      instance
 * @param properties    path to the attribute
 * @return              attribute value
 */
@Nullable
public static <T> T getValueEx(Instance instance, String[] properties) {
    if (properties == null) {
        return null;
    }
    Object currentValue = null;
    Instance currentInstance = instance;
    for (String property : properties) {
        if (currentInstance == null)
            break;
        currentValue = currentInstance.getValue(property);
        if (currentValue == null)
            break;
        currentInstance = currentValue instanceof Instance ? (Instance) currentValue : null;
    }
    // noinspection unchecked
    return (T) currentValue;
}