Order of CSV columns when I make a schema from a Pojo

[Benson Margulies]

Exception:

com.fasterxml.jackson.databind.RuntimeJsonMappingException: Can not construct instance of java.lang.Double from String value 'Q5622021': not a valid Double value

Input line:

Q5622021 2008.06.09.sailors.rescued.txt 1 210 220 Steven Guy 0.2762699182535878

Constructor:

   @JsonCreator

    public ResItem(@JsonProperty("entityId") String entityId,

                   @JsonProperty("docId") String docId,

                   @JsonProperty("indocId") String indocId,

                   @JsonProperty("mentionStart") int mentionStart,

                   @JsonProperty("mentionEnd") int mentionEnd,

                   @JsonProperty("mentionText") String mentionText,

                   @JsonProperty("confidence") double confidence) {

        this.entityId = entityId;

        this.docId = docId;

        this.indocId = indocId;

        this.mentionStart = mentionStart;

        this.mentionEnd = mentionEnd;

        this.mentionText = mentionText;

        this.confidence = confidence;

    }

Schema construction:

schema = mapper.schemaFor(ResItem.class).withColumnSeparator('\t');

Iterator constructor:

 MappingIterator<ResItem> iterator = mapper.reader(ResItem.class).with(schema).readValues(inputStream);

What have I done wrong? (2.3.3)

[Tatu Saloranta]

Order of properties for CSV module will be (by default) alphabetic ordering, since ordering of getters/setters/fields is basically undefined and unstable (as of JDK 1.7). Although ordering of constructor parameters would be stable source, it is not used.

You may want to just use @JsonPropertyOrder to explicitly define order that input file has.

-+ Tatu +-

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[Tatu Saloranta]

... or, alternatively, explicitly specify ordering for schema; 2.4 has method(s) to feed that in when building CsvSchema object.

-+ Tatu +-