About char
JPA Persistable Types
Explains how JPA manages types, including entity classes, embeddable classes, primitive types, wrappers, string, date, enum, collections and maps.... Primitive types: boolean , byte , short , char , int , long , float and double . Equivalent ...
Database Schema Evolution
Explains how ObjectDB handles automatically schema changes.... context numeric types are: byte , short , char , int , long , float , double , Byte , Short , ...
substring works with string but not with char
i want to select all entities whose name starts with a specific letter, i can use this query with a string parameter select f from Foo f where substring(f.name, 1, 1) = ?1 but when i use a char, the query does not return anything. i think it should also be possible to use char/Character types, do you agree? ... , 1 ) = ? 1 but when i use a char, the query does not return anything. i think it should also be possible to use char/Character types, do you agree? ...
DiscriminatorType.CHAR
Single character as the discriminator type.(Enum Constant of javax.persistence.DiscriminatorType)
getCharField(pc, field, currentValue)
Return the value for the field.(Method of javax.jdo.spi.StateManager)
setCharField(pc, field, currentValue, newValue)
Mark the field as modified by the user.(Method of javax.jdo.spi.StateManager)
trim(t, x)
Create expression to trim character from both ends of a string.(Method of javax.persistence.criteria.CriteriaBuilder)
like(x, pattern, escapeChar)
Create a predicate for testing whether the expression satisfies the given pattern.(Method of javax.persistence.criteria.CriteriaBuilder)
like(x, pattern, escapeChar)
Create a predicate for testing whether the expression satisfies the given pattern.(Method of javax.persistence.criteria.CriteriaBuilder)
like(x, pattern, escapeChar)
Create a predicate for testing whether the expression satisfies the given pattern.(Method of javax.persistence.criteria.CriteriaBuilder)
