About boolean

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Logical Operators in JPQL and Criteria API

Logical operators in JPQL and in JPA criteria queries enable composition of complex JPQL boolean expressions out of simple JPQL boolean expressions. Logical Operators ObjectDB supports 2 sets ... part of its JDO support. Criteria Query Logical Operators Boolean Expressions and Predicates Boolean

Database Schema Evolution

that are stored as numeric ordinal values (the default). From any type to Boolean or boolean (0, null

JPA Persistable Types

: boolean, byte, short, char, int, long, float and double. Equivalent wrapper classes from package java.lang: Boolean, Byte, Short, Character, Integer, Long, Float and Double. java.math.BigInteger

ObjectDB enhancement fails on "is" form for @Transient boolean isLoaded(), ok for "getter" form @Transient boolean getLoaded()

encounter ObjectDB enhancement errors: private boolean loaded = false; @Transient @Override public boolean isLoaded() { return loaded; } @Override public void setLoaded(boolean loaded) { this.loaded = loaded; } No matter whether using

How to convert a boolean to an int in the query?

How to convert a boolean to an int in the query? I have five parameters of type boolean in ... ._PersistenceException: Invalid operand type boolean for operator + Please tell me how to do this? Thanks ... them. You can calculate it in a JPA lifecycle event. Currently you cannot convert boolean to int in queries

PersistenceManager.getObjectsById(Collection,boolean) throwing JDOException

I have a call to getObjectsById(Collection,boolean) that is throwing a JDOException the first time I'm attempting to retrieve an object. If I try again, then the second request succeeds. Any idea why this might occur? We're using ObjectDB 2.2.4_02. The collection being passed in is a HashSet

Literals in JPQL and Criteria Queries

including NULL, boolean literals (TRUE and FALSE), numeric literals (e.g. 100), string literals (e.g ... explained in the Comparison Operators page. Boolean Literals Similarly to Java and SQL, JPQL supports two boolean literals - TRUE and FALSE. Since JPQL is case insensitive, TRUE is equivalent to true

ObjectDB Object Database Features

(boolean, byte, short, char, int, long, float, double). Wrapper types (Boolean, Byte, Short, Character ... a @EmbeddedId field. Primary Key Data Types Primitives (boolean, byte, short, char, int, long, float and double). Wrappers (Boolean, Byte, Short, Character, Integer, Long, Float and Double). java.lang.String

WHERE clause (JPQL / Criteria API)

, the WHERE clause gets an opportunity to function as a filter. The boolean expression in ... functions). The WHERE predicate is always a boolean JPQL expression. JPQL expressions are also used ... Restriction The first where method takes one Expression<Boolean> argument and uses it as


to the database will not be persisted. Since: JPA 1.0 boolean contains(Object entity) Check ... - entity instance Returns: boolean indicating if entity is in persistence context Throws ... the cache. Since: JDO 1.0 See Also: evict(Object pc) void evictAll(boolean subclasses, Class pcClass