/** Clear the key for the given property */
public synchronized void clearValue(Property<?> property) {
if (setValues != null && setValues.containsKey(property.getColumnName())) {
setValues.remove(property.getColumnName());
}
if (values != null && values.containsKey(property.getColumnName())) {
values.remove(property.getColumnName());
}
}
/**
* @return true if setValues or values contains this property, and the value stored is not null
*/
public boolean containsNonNullValue(Property<?> property) {
if (setValues != null && setValues.containsKey(property.getColumnName())) {
return setValues.get(property.getColumnName()) != null;
}
if (values != null && values.containsKey(property.getColumnName())) {
return values.get(property.getColumnName()) != null;
}
return false;
}
/** Turn a model into xml attributes */
private void serializeModel(
AbstractModel model, Property<?>[] properties, Property<?>... excludes) {
outer:
for (Property<?> property : properties) {
for (Property<?> exclude : excludes) {
if (property.name.equals(exclude.name)) {
continue outer;
}
}
try {
property.accept(xmlWritingVisitor, model);
} catch (Exception e) {
Timber.e(e, e.getMessage());
}
}
}
public synchronized void save(Property<?> property, ContentValues newStore, Object value) {
this.store = newStore;
// we don't allow null values, as they indicate unset properties
// when the database was written
if (value != null) {
property.accept(this, value);
}
}
/**
* Turn a model into xml attributes
*
* @param model
*/
private void serializeModel(
AbstractModel model, Property<?>[] properties, Property<?>... excludes) {
outer:
for (Property<?> property : properties) {
for (Property<?> exclude : excludes) if (property.name.equals(exclude.name)) continue outer;
try {
property.accept(xmlWritingVisitor, model);
} catch (Exception e) {
Log.e(
"astrid-exporter", //$NON-NLS-1$
"Caught exception while reading "
+ property.name
+ //$NON-NLS-1$
" from "
+ model.getDatabaseValues(),
e); //$NON-NLS-1$
}
}
}
/** Reads the given property. Make sure this model has this property! */
public synchronized <TYPE> TYPE getValue(Property<TYPE> property) {
Object value;
if (setValues != null && setValues.containsKey(property.getColumnName())) {
value = setValues.get(property.getColumnName());
} else if (values != null && values.containsKey(property.getColumnName())) {
value = values.get(property.getColumnName());
} else if (getDefaultValues().containsKey(property.getColumnName())) {
value = getDefaultValues().get(property.getColumnName());
} else {
throw new UnsupportedOperationException(
"Model Error: Did not read property " + property.name); // $NON-NLS-1$
}
// resolve properties that were retrieved with a different type than accessed
try {
if (value instanceof String && property instanceof LongProperty) {
return (TYPE) Long.valueOf((String) value);
} else if (value instanceof String && property instanceof IntegerProperty) {
return (TYPE) Integer.valueOf((String) value);
} else if (value instanceof Integer && property instanceof LongProperty) {
return (TYPE) Long.valueOf(((Number) value).longValue());
}
return (TYPE) value;
} catch (NumberFormatException e) {
return (TYPE) getDefaultValues().get(property.name);
}
}
/**
* Check whether the user has changed this property value and it should be stored for saving in
* the database
*/
protected synchronized <TYPE> boolean shouldSaveValue(Property<TYPE> property, TYPE newValue) {
// we've already decided to save it, so overwrite old value
if (setValues.containsKey(property.getColumnName())) {
return true;
}
// values contains this key, we should check it out
if (values != null && values.containsKey(property.getColumnName())) {
TYPE value = getValue(property);
if (value == null) {
if (newValue == null) {
return false;
}
} else if (value.equals(newValue)) {
return false;
}
}
// otherwise, good to save
return true;
}
@Override
public Void visitString(Property<String> property, Object value) {
store.put(property.getColumnName(), (String) value);
return null;
}
@Override
public Void visitInteger(Property<Integer> property, Object value) {
store.put(property.getColumnName(), (Integer) value);
return null;
}