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Java Type VS Hibernate Type

Java Class Attribute Type         Hibernate Type               Possible SQL Type-Vendor Specific
Integer, int, long short          integer, long, short         Appropriate SQL type
char                              character                    char
java.math.BigDecimal              big_decimal                  NUMERIC, NUMBER
float, double                     float, double                float, double
java.lang.Boolean, boolean        boolean, yes_no,             boolean, int
                                  true_false
  
java.lang.string                  string                      &


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Java equals

boolean java.lang.Object.equals(Object obj)
Indicates whether some other
object is "equal to" this one.
The equals method implements an
equivalence relation on non-null object references:
It is reflexive: for
any non-null reference value x, x.equals(x) should return true.
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