Java Class for obtaining corresponding Gson json object -


i have json object following representation :

{     text     : "ed o'kelley man shot man shot jesse james.",     entities : [         ['t1', 'person', [[0, 11]]],         ['t2', 'person', [[20, 23]]],         ['t3', 'person', [[37, 40]]],         ['t4', 'person', [[50, 61]]],     ], };

i need create java class can used create json above structure using gson.

this have:

public class docdata {     private string text;      private list<list<string>> entities;      public docdata(final string text, final list<list<string>> entities)     {         this.text = text;         this.entities = entities;     }      public list<list<string>> getentities()     {         return entities;     } }

above class works serializing text field not sure datatype need use entities creates array of array of triplets form "['t1', 'person', [[0, 11]]]".

your code fine json provided.

however:

the entities mix of types.

each entity in entities array.

there 3 element in entity: string, string , array

this not recommended way. suggest use:

{     "text": "ed o'kelley man shot man shot jesse james.",     "entities": [         {             "field_name_1": "t1",             "field_name_2": "person",             "field_name_3": [                 [                     0,                     11                 ]             ]         }         ...     ] }

in case have 2 pojo's:

public class docdata {     private string text;      private list<entity> entities;      public docdata(final string text, final list<entity> entities)     {         this.text = text;         this.entities = entities;     }      public list<entity> getentities()     {         return entities;     } }   public class entity {     private string field_name_1;      private string field_name_2;      private list<list<integer>> field_name_3; }

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