EDT:EGL Language Primitive Types

Please see the parent of this page, EDT:EGL_Language.

Primitive Types (Table 3)

Primitive Types	Core	JavaScript Nullable Types	Java	Debug
Any
Boolean		done
Dictionary		Dictionary Support
String(N)1
String2		done
Timestamp(pattern)3
Timestamp3, 8
Blob		N/S
Clob		N/S
Smallint		done
Int		done
Bigint		done
Decimal(N,M)9		done
Decimal4		done
Float		done
Smallfloat		done
Number5		done
Bytes(N)6
Bytes7
Arraydictionary		N/S	N/S	N/S
Char		N/S	N/S	N/S
Dbchar		N/S	N/S	N/S
Mbchar		N/S	N/S	N/S
Unicode		N/S	N/S	N/S
Hex6		N/S	N/S	N/S
Date3		N/S	N/S	N/S
Time3		N/S	N/S	N/S
Interval3		N/S	N/S	N/S
Bin		N/S	N/S	N/S
Num		N/S	N/S	N/S
Numc		N/S	N/S	N/S
Pacf		N/S	N/S	N/S
Money		N/S	N/S	N/S

Notes on Table 3

1. String(N) is a reference type in EDT.
2. String is a reference type in EDT.
3. Timestamp is the only supported date/time type. Use it in place of RBD's date, time, and interval.
4. Decimal with no length or decimals is a reference type with an immutable value.
5. Number is a reference type with an immutable value. Unlike in RBD, number variables can be declared anywhere a variable declaration is allowed.
6. Bytes(N) is a value type similar to RBD's hex. N indicates the number of bytes in the value. (In RBD, the length of a hex is the number of nibbles not the nubmer of bytes.)
7. Bytes with no length is a reference type with an immutable value of any length.
   
8. Timestamp with no pattern is a reference type in EDT.  It can hold any timestamp value.
9. As in RBD, it's OK to only specify the length when using the decimal type. Decimal(N) is internally mapped to decimal(N,0).

More about the Bytes type

Bytes is meant to hold data with no particular format.

Assignment between two bytes values with no length is a reference assignment. Assignment between two bytes values when one or both has a length is a value assignment (data is copied). If the source is longer bytes on its right side are truncated. If the source is shorter then we don't add padding: we just don't update what was there before. For example if your bytes(3) is 0x123456 and you assign it a bytes(1) value of 0x99 then the bytes(3) ends up with 0x993456.

In order for two bytes values to be compared, they must both have a size, and the sizes must be equal. The comparison is done one byte at a time, from left to right, until a difference is found. The operand with a one instead of a zero is greater.

The bytes type supports the substring operator. The type of the result is bytes (with no length).