java.sql.Timestamp values.
One way to customize Timestamp formats accepted is to override method
DeserializationContext#parseDate that this basic
deserializer calls.
| Modifier and Type | Field and Description |
|---|---|
| public static final JavaSqlTimestampDeserializer |
| Access | Constructor and Description |
|---|---|
| public | |
| public |
| Modifier and Type | Method and Description |
|---|---|
| public Timestamp | deserialize(JsonParser p, DeserializationContext ctxt)
Implements abstract tools. Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles. |
| public Object | getEmptyValue(DeserializationContext ctxt)
Overrides tools. Method called to determine value to be used for "empty" values (most commonly when deserializing from empty JSON Strings). |
| protected JavaSqlTimestampDeserializer | withDateFormat(DateFormat df, String formatString)
Implements abstract tools.
|
| instance | back to summary |
|---|---|
| public static final JavaSqlTimestampDeserializer instance | |
| JavaSqlTimestampDeserializer | back to summary |
|---|---|
| public JavaSqlTimestampDeserializer() | |
| JavaSqlTimestampDeserializer | back to summary |
|---|---|
| public JavaSqlTimestampDeserializer(JavaSqlTimestampDeserializer src, DateFormat df, String formatString) | |
| deserialize | back to summary |
|---|---|
| public Timestamp deserialize(JsonParser p, DeserializationContext ctxt) throws JacksonException Implements abstract tools. Doc from tools. Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles. Returned instance is to be constructed by method itself. Pre-condition for this method is that the parser points to the first event that is part of value to deserializer (and which is never JSON 'null' literal, more on this below): for simple types it may be the only value; and for structured types the Object start marker or a FIELD_NAME. The two possible input conditions for structured types result from polymorphism via fields. In the ordinary case, Jackson calls this method when it has encountered an OBJECT_START, and the method implementation must advance to the next token to see the first field name. If the application configures polymorphism via a field, then the object looks like the following.
{
"@class": "class name",
...
}
Jackson consumes the two tokens (the @class field name
and its value) in order to learn the class and select the deserializer.
Thus, the stream is pointing to the FIELD_NAME for the first field
after the @class. Thus, if you want your method to work correctly
both with and without polymorphism, you must begin your method with:
if (p.currentToken() == JsonToken.START_OBJECT) {
p.nextToken();
}
This results in the stream pointing to the field name, so that
the two conditions align.
Post-condition is that the parser will point to the last event that is part of deserialized value (or in case deserialization fails, event that was not recognized or usable, which may be the same event as the one it pointed to upon call).
Handling null values (JsonToken.VALUE_NULL)
| |
| getEmptyValue | back to summary |
|---|---|
| public Object getEmptyValue(DeserializationContext ctxt) Overrides tools. Doc from tools. Method called to determine value to be used for "empty" values
(most commonly when deserializing from empty JSON Strings).
Usually this is same as
This method may be called once, or multiple times, depending on what
Default implementation simply calls
| |
| withDateFormat | back to summary |
|---|---|
| protected JavaSqlTimestampDeserializer withDateFormat(DateFormat df, String formatString) Implements abstract tools.
| |