COBOL to Java mapping
When you generate a XOM from a COBOL copybook most COBOL types map to a Java™ type.
When generating a XOM from a COBOL copybook, the COBOL types are mapped to default Java types.
The following table lists each COBOL type and shows the corresponding COBOL usage and compile options, the PICTURE String with some examples, and the Java type to which the COBOL type maps. Note that not all COBOL types map to a Java type.
| COBOL type | COBOL usage and compile options | PICTURE string | Example | XOM Java type |
|---|---|---|---|---|
| Alphabetic | DISPLAY | A | PIC A(20). | Not supported |
| AlphaNumeric | DISPLAY | X Combination of A, X, and 9 |
PIC X(12). | String |
| AlphaNumericEdited | DISPLAY | A X 9 B 0 / | PIC XBX. | Not supported |
| Numeric | COMP-5 or BINARY, COMP, COMP-4 with TRUNC(BIN). For the compile option TRUNC(BIN), the range for a binary number (binary, COMP, COMP-4) is constrained by the storage limit, not the PICTURE String. COMP-5 is always constrained by the storage limit. The storage limit is determined by the size of the PICTURE String. |
S9(1) through 9(4) | PIC S9 BINARY. | short |
| S9(5) through S9(9) | PIC S999999 BINARY. | int | ||
| S9(10) through S9(18) | PIC S9999999999 BINARY. | long | ||
| 9(1) through 9(4) | PIC 9 BINARY. | int | ||
| 9(5) through 9(9) | PIC 999999 BINARY. | long | ||
| 9(10) through 9(18) | PIC 9999999999 BINARY. | BigInteger | ||
| 9(10) through 9(18), with decimal (V or P) | PIC S999V9 BINARY. | BigDecimal | ||
| DISPLAY, COMP-3, PACKED-DECIMAL or BINARY, COMP, COMP-4 and not TRUNC(BIN) | S9(1) through S9(4) 9(1) through 9(4) |
short | ||
S9(5) through S9(9) 9(5) through 9(9) |
int | |||
S9(10) through S9(18) 9(10) through 9(18) |
long | |||
| S9(10) through S9(18) and 9(10) through 9(18), with decimal (V or P) | BigDecimal | |||
| DISPLAY, COMP-3, PACKED-DECIMAL and ARITH(extend) | S9(19) through S9(31) 9(19) through 9(31) |
BigInteger | ||
| DISPLAY, COMP-3, PACKED-DECIMAL and ARITH(extend) | S9(19) through S9(31) 9(19) through 9(31) Decimal (V or P) |
BigDecimal | ||
| NumericEdited | DISPLAY | B P V Z 9 0 / , . + - CR DB * cs | PIC 9B9 | Not supported |
| DBCS | DBCS | G, B, or N with DISPLAY-1 | PIC G(10). | String |
| InternalFloat | COMP-1 | float | ||
| COMP-2 | double | |||
| ExternalFloat | +9 -9 0 . V E 9. | PIC +99V9E99. | Not supported | |
| NationalExternalFloat | PIC +9.9E+99 | PIC NBN | Not supported | |
| Level 88 | |
Accessor for main element is the get method for each Level 88 item | ||
| National | NATIONAL | PIC N(8) | String | |
PIC 999V9 PIC S999V9 SIGN LEADING SEPARATE PIC S999V9 SIGN TRAILING SEPARATE |
BigDecimal | |||
| NationalEdited | PIC NBN PIC $9.9 |
Not supported |