Constants

The following list contains the set of constants needed by the Gurobi Java interface. You would refer to them using a GRB. prefix (e.g., GRB.Status.OPTIMAL).

  // Model-status-codes

  public static final int LOADED          = 1;
  public static final int OPTIMAL         = 2;
  public static final int INFEASIBLE      = 3;
  public static final int INF_OR_UNBD     = 4;
  public static final int UNBOUNDED       = 5;
  public static final int CUTOFF          = 6;
  public static final int ITERATION_LIMIT = 7;
  public static final int NODE_LIMIT      = 8;
  public static final int TIME_LIMIT      = 9;
  public static final int SOLUTION_LIMIT  = 10;
  public static final int INTERRUPTED     = 11;
  public static final int NUMERIC         = 12;
  public static final int SUBOPTIMAL      = 13;
  public static final int INPROGRESS      = 14;
  public static final int USER_OBJ_LIMIT  = 15;
  public static final int WORK_LIMIT      = 16;
  public static final int MEM_LIMIT       = 17;

  public class Status {
    public static final int LOADED          = 1;
    public static final int OPTIMAL         = 2;
    public static final int INFEASIBLE      = 3;
    public static final int INF_OR_UNBD     = 4;
    public static final int UNBOUNDED       = 5;
    public static final int CUTOFF          = 6;
    public static final int ITERATION_LIMIT = 7;
    public static final int NODE_LIMIT      = 8;
    public static final int TIME_LIMIT      = 9;
    public static final int SOLUTION_LIMIT  = 10;
    public static final int INTERRUPTED     = 11;
    public static final int NUMERIC         = 12;
    public static final int SUBOPTIMAL      = 13;
    public static final int INPROGRESS      = 14;
    public static final int USER_OBJ_LIMIT  = 15;
    public static final int WORK_LIMIT      = 16;
    public static final int MEM_LIMIT       = 17;
  }

  // BatchStatus codes

  public static final int CREATED   = 1;
  public static final int SUBMITTED = 2;
  public static final int ABORTED   = 3;
  public static final int FAILED    = 4;
  public static final int COMPLETED = 5;

  public class BatchStatus {
    public static final int CREATED   = 1;
    public static final int SUBMITTED = 2;
    public static final int ABORTED   = 3;
    public static final int FAILED    = 4;
    public static final int COMPLETED = 5;
  }

  // Constraint senses

  public static final char LESS_EQUAL    = '<';
  public static final char GREATER_EQUAL = '>';
  public static final char EQUAL         = '=';

  // Variable types

  public static final char CONTINUOUS   = 'C';
  public static final char BINARY       = 'B';
  public static final char INTEGER      = 'I';
  public static final char SEMICONT     = 'S';
  public static final char SEMIINT      = 'N';

  // Objective sense

  public static final int MINIMIZE = 1;
  public static final int MAXIMIZE = -1;

  // SOS types

  public static final int SOS_TYPE1      = 1;
  public static final int SOS_TYPE2      = 2;

  // General constraint types

  public static final int GENCONSTR_MAX       = 0;
  public static final int GENCONSTR_MIN       = 1;
  public static final int GENCONSTR_ABS       = 2;
  public static final int GENCONSTR_AND       = 3;
  public static final int GENCONSTR_OR        = 4;
  public static final int GENCONSTR_NORM      = 5;
  public static final int GENCONSTR_INDICATOR = 6;
  public static final int GENCONSTR_PWL       = 7;
  public static final int GENCONSTR_POLY      = 8;
  public static final int GENCONSTR_EXP       = 9;
  public static final int GENCONSTR_EXPA      = 10;
  public static final int GENCONSTR_LOG       = 11;
  public static final int GENCONSTR_LOGA      = 12;
  public static final int GENCONSTR_POW       = 13;
  public static final int GENCONSTR_SIN       = 14;
  public static final int GENCONSTR_COS       = 15;
  public static final int GENCONSTR_TAN       = 16;
  public static final int GENCONSTR_LOGISTIC  = 17;

  // Basis status info

  public static final int BASIC           = 0;
  public static final int NONBASIC_LOWER  = -1;
  public static final int NONBASIC_UPPER  = -2;
  public static final int SUPERBASIC      = -3;

  // Numeric constants

  public static final double INFINITY    = 1e100;
  public static final double UNDEFINED   = 1e101;
  public static final int    MAXINT      = 2000000000;

  // Limits

  public static final int MAX_STRLEN     = 512;
  public static final int MAX_NAMELEN    = 255;
  public static final int MAX_TAGLEN     = 10240;
  public static final int MAX_CONCURRENT = 64;

  // Other constants

  public static final int DEFAULT_CS_PORT = 61000;

  // Version numbers

  public static final int VERSION_MAJOR     = 11;
  public static final int VERSION_MINOR     = 0;
  public static final int VERSION_TECHNICAL = 3;

  // Callback constants

  public static final int CB_POLLING                =     0;
  public static final int CB_PRESOLVE               =     1;
  public static final int CB_SIMPLEX                =     2;
  public static final int CB_MIP                    =     3;
  public static final int CB_MIPSOL                 =     4;
  public static final int CB_MIPNODE                =     5;
  public static final int CB_MESSAGE                =     6;
  public static final int CB_BARRIER                =     7;
  public static final int CB_MULTIOBJ               =     8;
  public static final int CB_IIS                    =     9;
  public static final int CB_PRE_COLDEL             =  1000;
  public static final int CB_PRE_ROWDEL             =  1001;
  public static final int CB_PRE_SENCHG             =  1002;
  public static final int CB_PRE_BNDCHG             =  1003;
  public static final int CB_PRE_COECHG             =  1004;
  public static final int CB_SPX_ITRCNT             =  2000;
  public static final int CB_SPX_OBJVAL             =  2001;
  public static final int CB_SPX_PRIMINF            =  2002;
  public static final int CB_SPX_DUALINF            =  2003;
  public static final int CB_SPX_ISPERT             =  2004;
  public static final int CB_MIP_OBJBST             =  3000;
  public static final int CB_MIP_OBJBND             =  3001;
  public static final int CB_MIP_NODCNT             =  3002;
  public static final int CB_MIP_SOLCNT             =  3003;
  public static final int CB_MIP_CUTCNT             =  3004;
  public static final int CB_MIP_NODLFT             =  3005;
  public static final int CB_MIP_ITRCNT             =  3006;
  public static final int CB_MIP_OPENSCENARIOS      =  3007;
  public static final int CB_MIP_PHASE              =  3008;
  public static final int CB_MIPSOL_SOL             =  4001;
  public static final int CB_MIPSOL_OBJ             =  4002;
  public static final int CB_MIPSOL_OBJBST          =  4003;
  public static final int CB_MIPSOL_OBJBND          =  4004;
  public static final int CB_MIPSOL_NODCNT          =  4005;
  public static final int CB_MIPSOL_SOLCNT          =  4006;
  public static final int CB_MIPSOL_OPENSCENARIOS   =  4007;
  public static final int CB_MIPSOL_PHASE           =  4008;
  public static final int CB_MIPNODE_STATUS         =  5001;
  public static final int CB_MIPNODE_REL            =  5002;
  public static final int CB_MIPNODE_OBJBST         =  5003;
  public static final int CB_MIPNODE_OBJBND         =  5004;
  public static final int CB_MIPNODE_NODCNT         =  5005;
  public static final int CB_MIPNODE_SOLCNT         =  5006;
  public static final int CB_MIPNODE_BRVAR          =  5007;
  public static final int CB_MIPNODE_OPENSCENARIOS  =  5008;
  public static final int CB_MIPNODE_PHASE          =  5009;
  public static final int CB_MSG_STRING             =  6001;
  public static final int CB_RUNTIME                =  6002;
  public static final int CB_WORK                   =  6003;
  public static final int CB_BARRIER_ITRCNT         =  7001;
  public static final int CB_BARRIER_PRIMOBJ        =  7002;
  public static final int CB_BARRIER_DUALOBJ        =  7003;
  public static final int CB_BARRIER_PRIMINF        =  7004;
  public static final int CB_BARRIER_DUALINF        =  7005;
  public static final int CB_BARRIER_COMPL          =  7006;
  public static final int CB_MULTIOBJ_OBJCNT        =  8001;
  public static final int CB_MULTIOBJ_SOLCNT        =  8002;
  public static final int CB_MULTIOBJ_SOL           =  8003;
  public static final int CB_IIS_CONSTRMIN          =  9001;
  public static final int CB_IIS_CONSTRMAX          =  9002;
  public static final int CB_IIS_CONSTRGUESS        =  9003;
  public static final int CB_IIS_BOUNDMIN           =  9004;
  public static final int CB_IIS_BOUNDMAX           =  9005;
  public static final int CB_IIS_BOUNDGUESS         =  9006;

  public class Callback {
    public static final int POLLING                =     0;
    public static final int PRESOLVE               =     1;
    public static final int SIMPLEX                =     2;
    public static final int MIP                    =     3;
    public static final int MIPSOL                 =     4;
    public static final int MIPNODE                =     5;
    public static final int MESSAGE                =     6;
    public static final int BARRIER                =     7;
    public static final int MULTIOBJ               =     8;
    public static final int IIS                    =     9;
    public static final int PRE_COLDEL             =  1000;
    public static final int PRE_ROWDEL             =  1001;
    public static final int PRE_SENCHG             =  1002;
    public static final int PRE_BNDCHG             =  1003;
    public static final int PRE_COECHG             =  1004;
    public static final int SPX_ITRCNT             =  2000;
    public static final int SPX_OBJVAL             =  2001;
    public static final int SPX_PRIMINF            =  2002;
    public static final int SPX_DUALINF            =  2003;
    public static final int SPX_ISPERT             =  2004;
    public static final int MIP_OBJBST             =  3000;
    public static final int MIP_OBJBND             =  3001;
    public static final int MIP_NODCNT             =  3002;
    public static final int MIP_SOLCNT             =  3003;
    public static final int MIP_CUTCNT             =  3004;
    public static final int MIP_NODLFT             =  3005;
    public static final int MIP_ITRCNT             =  3006;
    public static final int MIP_OPENSCENARIOS      =  3007;
    public static final int MIP_PHASE              =  3008;
    public static final int MIPSOL_SOL             =  4001;
    public static final int MIPSOL_OBJ             =  4002;
    public static final int MIPSOL_OBJBST          =  4003;
    public static final int MIPSOL_OBJBND          =  4004;
    public static final int MIPSOL_NODCNT          =  4005;
    public static final int MIPSOL_SOLCNT          =  4006;
    public static final int MIPSOL_OPENSCENARIOS   =  4007;
    public static final int MIPSOL_PHASE           =  4008;
    public static final int MIPNODE_STATUS         =  5001;
    public static final int MIPNODE_REL            =  5002;
    public static final int MIPNODE_OBJBST         =  5003;
    public static final int MIPNODE_OBJBND         =  5004;
    public static final int MIPNODE_NODCNT         =  5005;
    public static final int MIPNODE_SOLCNT         =  5006;
    public static final int MIPNODE_BRVAR          =  5007;
    public static final int MIPNODE_OPENSCENARIOS  =  5008;
    public static final int MIPNODE_PHASE          =  5009;
    public static final int MSG_STRING             =  6001;
    public static final int RUNTIME                =  6002;
    public static final int WORK                   =  6003;
    public static final int BARRIER_ITRCNT         =  7001;
    public static final int BARRIER_PRIMOBJ        =  7002;
    public static final int BARRIER_DUALOBJ        =  7003;
    public static final int BARRIER_PRIMINF        =  7004;
    public static final int BARRIER_DUALINF        =  7005;
    public static final int BARRIER_COMPL          =  7006;
    public static final int MULTIOBJ_OBJCNT        =  8001;
    public static final int MULTIOBJ_SOLCNT        =  8002;
    public static final int MULTIOBJ_SOL           =  8003;
    public static final int IIS_CONSTRMIN          =  9001;
    public static final int IIS_CONSTRMAX          =  9002;
    public static final int IIS_CONSTRGUESS        =  9003;
    public static final int IIS_BOUNDMIN           =  9004;
    public static final int IIS_BOUNDMAX           =  9005;
    public static final int IIS_BOUNDGUESS         =  9006;
  }

  // Errors

  public static final int ERROR_OUT_OF_MEMORY            = 10001;
  public static final int ERROR_NULL_ARGUMENT            = 10002;
  public static final int ERROR_INVALID_ARGUMENT         = 10003;
  public static final int ERROR_UNKNOWN_ATTRIBUTE        = 10004;
  public static final int ERROR_DATA_NOT_AVAILABLE       = 10005;
  public static final int ERROR_INDEX_OUT_OF_RANGE       = 10006;
  public static final int ERROR_UNKNOWN_PARAMETER        = 10007;
  public static final int ERROR_VALUE_OUT_OF_RANGE       = 10008;
  public static final int ERROR_NO_LICENSE               = 10009;
  public static final int ERROR_SIZE_LIMIT_EXCEEDED      = 10010;
  public static final int ERROR_CALLBACK                 = 10011;
  public static final int ERROR_FILE_READ                = 10012;
  public static final int ERROR_FILE_WRITE               = 10013;
  public static final int ERROR_NUMERIC                  = 10014;
  public static final int ERROR_IIS_NOT_INFEASIBLE       = 10015;
  public static final int ERROR_NOT_FOR_MIP              = 10016;
  public static final int ERROR_OPTIMIZATION_IN_PROGRESS = 10017;
  public static final int ERROR_DUPLICATES               = 10018;
  public static final int ERROR_NODEFILE                 = 10019;
  public static final int ERROR_Q_NOT_PSD                = 10020;
  public static final int ERROR_QCP_EQUALITY_CONSTRAINT  = 10021;
  public static final int ERROR_NETWORK                  = 10022;
  public static final int ERROR_JOB_REJECTED             = 10023;
  public static final int ERROR_NOT_SUPPORTED            = 10024;
  public static final int ERROR_EXCEED_2B_NONZEROS       = 10025;
  public static final int ERROR_INVALID_PIECEWISE_OBJ    = 10026;
  public static final int ERROR_UPDATEMODE_CHANGE        = 10027;
  public static final int ERROR_CLOUD                    = 10028;
  public static final int ERROR_MODEL_MODIFICATION       = 10029;
  public static final int ERROR_CSWORKER                 = 10030;
  public static final int ERROR_TUNE_MODEL_TYPES         = 10031;
  public static final int ERROR_SECURITY                 = 10032;
  public static final int ERROR_NOT_IN_MODEL             = 20001;
  public static final int ERROR_FAILED_TO_CREATE_MODEL   = 20002;
  public static final int ERROR_INTERNAL                 = 20003;

  public class Error {
    public static final int OUT_OF_MEMORY            = 10001;
    public static final int NULL_ARGUMENT            = 10002;
    public static final int INVALID_ARGUMENT         = 10003;
    public static final int UNKNOWN_ATTRIBUTE        = 10004;
    public static final int DATA_NOT_AVAILABLE       = 10005;
    public static final int INDEX_OUT_OF_RANGE       = 10006;
    public static final int UNKNOWN_PARAMETER        = 10007;
    public static final int VALUE_OUT_OF_RANGE       = 10008;
    public static final int NO_LICENSE               = 10009;
    public static final int SIZE_LIMIT_EXCEEDED      = 10010;
    public static final int CALLBACK                 = 10011;
    public static final int FILE_READ                = 10012;
    public static final int FILE_WRITE               = 10013;
    public static final int NUMERIC                  = 10014;
    public static final int IIS_NOT_INFEASIBLE       = 10015;
    public static final int NOT_FOR_MIP              = 10016;
    public static final int OPTIMIZATION_IN_PROGRESS = 10017;
    public static final int DUPLICATES               = 10018;
    public static final int NODEFILE                 = 10019;
    public static final int ERROR_Q_NOT_PSD          = 10020;
    public static final int QCP_EQUALITY_CONSTRAINT  = 10021;
    public static final int NETWORK                  = 10022;
    public static final int JOB_REJECTED             = 10023;
    public static final int NOT_SUPPORTED            = 10024;
    public static final int EXCEED_2B_NONZEROS       = 10025;
    public static final int INVALID_PIECEWISE_OBJ    = 10026;
    public static final int UPDATEMODE_CHANGE        = 10027;
    public static final int CLOUD                    = 10028;
    public static final int MODEL_MODIFICATION       = 10029;
    public static final int CSWORKER                 = 10030;
    public static final int TUNE_MODEL_TYPES         = 10031;
    public static final int ERROR_SECURITY           = 10032;
    public static final int NOT_IN_MODEL             = 20001;
    public static final int FAILED_TO_CREATE_MODEL   = 20002;
    public static final int INTERNAL                 = 20003;
  }

  // Cuts parameter values

  public static final int CUTS_AUTO           = -1;
  public static final int CUTS_OFF            = 0;
  public static final int CUTS_CONSERVATIVE   = 1;
  public static final int CUTS_AGGRESSIVE     = 2;
  public static final int CUTS_VERYAGGRESSIVE = 3;

  // Presolve parameter values

  public static final int PRESOLVE_AUTO         = -1;
  public static final int PRESOLVE_OFF          =  0;
  public static final int PRESOLVE_CONSERVATIVE =  1;
  public static final int PRESOLVE_AGGRESSIVE   =  2;

  // Method parameter values

  public static final int METHOD_NONE                             = -1;
  public static final int METHOD_AUTO                             = -1;
  public static final int METHOD_PRIMAL                           = 0;
  public static final int METHOD_DUAL                             = 1;
  public static final int METHOD_BARRIER                          = 2;
  public static final int METHOD_CONCURRENT                       = 3;
  public static final int METHOD_DETERMINISTIC_CONCURRENT         = 4;
  public static final int METHOD_DETERMINISTIC_CONCURRENT_SIMPLEX = 5;

  // BarHomogeneous parameter values

  public static final int BARHOMOGENEOUS_AUTO = -1;
  public static final int BARHOMOGENEOUS_OFF  = 0;
  public static final int BARHOMOGENEOUS_ON   = 1;

  // BarOrder parameter values

  public static final int BARORDER_AUTOMATIC        = 0;
  public static final int BARORDER_AMD              = 1;
  public static final int BARORDER_NESTEDDISSECTION = 2;

  // MIPFocus parameter values

  public static final int MIPFOCUS_BALANCED    = 0;
  public static final int MIPFOCUS_FEASIBILITY = 1;
  public static final int MIPFOCUS_OPTIMALITY  = 2;
  public static final int MIPFOCUS_BESTBOUND   = 3;

  // SimplexPricing parameter values

  public static final int SIMPLEXPRICING_AUTO           = -1;
  public static final int SIMPLEXPRICING_PARTIAL        = 0;
  public static final int SIMPLEXPRICING_STEEPEST_EDGE  = 1;
  public static final int SIMPLEXPRICING_DEVEX          = 2;
  public static final int SIMPLEXPRICING_STEEPEST_QUICK = 3;

  // VarBranch parameter values

  public static final int VARBRANCH_AUTO           = -1;
  public static final int VARBRANCH_PSEUDO_REDUCED = 0;
  public static final int VARBRANCH_PSEUDO_SHADOW  = 1;
  public static final int VARBRANCH_MAX_INFEAS     = 2;
  public static final int VARBRANCH_STRONG         = 3;

  // PartitionPlace parameter values

  public static final int PARTITION_EARLY     = 16;
  public static final int PARTITION_ROOTSTART = 8;
  public static final int PARTITION_ROOTEND   = 4;
  public static final int PARTITION_NODES     = 2;
  public static final int PARTITION_CLEANUP   = 1;

  // Callback phase values

  public static final int PHASE_MIP_NOREL   = 0;
  public static final int PHASE_MIP_SEARCH  = 1;
  public static final int PHASE_MIP_IMPROVE = 2;

  // FeasRelax method parameter values

  public static final int FEASRELAX_LINEAR      = 0;
  public static final int FEASRELAX_QUADRATIC   = 1;
  public static final int FEASRELAX_CARDINALITY = 2;

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ln_or	1 day	LinkedIn Cookie
vuid	2 years	Vimeo installs this cookie to collect tracking information by setting a unique ID to embed videos to the website.

Cookie	Duration	Description
__adroll	1 year 1 month	This cookie is set by AdRoll to identify users across visits and devices. It is used by real-time bidding for advertisers to display relevant advertisements.
__adroll_fpc	1 year	AdRoll sets this cookie to target users with advertisements based on their browsing behaviour.
__adroll_shared	1 year 1 month	Adroll sets this cookie to collect information on users across different websites for relevant advertising.
__ar_v4	1 year	This cookie is set under the domain DoubleClick, to place ads that point to the website in Google search results and to track conversion rates for these ads.
_fbp	3 months	This cookie is set by Facebook to display advertisements when either on Facebook or on a digital platform powered by Facebook advertising, after visiting the website.
_te_	session	Adroll cookie
fr	3 months	Facebook sets this cookie to show relevant advertisements to users by tracking user behaviour across the web, on sites that have Facebook pixel or Facebook social plugin.
IDE	1 year 24 days	Google DoubleClick IDE cookies are used to store information about how the user uses the website to present them with relevant ads and according to the user profile.
li_sugr	3 months	LinkedIn sets this cookie to collect user behaviour data to optimise the website and make advertisements on the website more relevant.
test_cookie	15 minutes	The test_cookie is set by doubleclick.net and is used to determine if the user's browser supports cookies.
VISITOR_INFO1_LIVE	5 months 27 days	A cookie set by YouTube to measure bandwidth that determines whether the user gets the new or old player interface.
YSC	session	YSC cookie is set by Youtube and is used to track the views of embedded videos on Youtube pages.
yt-remote-connected-devices	never	YouTube sets this cookie to store the video preferences of the user using embedded YouTube video.
yt-remote-device-id	never	YouTube sets this cookie to store the video preferences of the user using embedded YouTube video.
yt.innertube::nextId	never	This cookie, set by YouTube, registers a unique ID to store data on what videos from YouTube the user has seen.
yt.innertube::requests	never	This cookie, set by YouTube, registers a unique ID to store data on what videos from YouTube the user has seen.

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