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Forum
23

Java 6/7 Performance Comparison

Java 6/7 Performance Comparison
Manual
16

Index Definition

the need to access the entities themselves. Instead, because of the comparison in the WHERE clause
Manual
16

JPA Criteria API Queries

, substring, ...). Collection expressions (isEmpty, isNotEmpty, isMember, isNotMember, size). Comparison
Manual
16

Logical Operators in JPQL and Criteria API

> that represents many operator and function expressions whose type is boolean - such as comparison operators
Manual
16

JPA / JDO Class Enhancer

tracking of persistent field modifications, avoiding the need for snapshot comparison of entities (as
Result
16

ObjectDB Object Database Features

, AVG, MAX, MIN). Query Expressions Path navigation expressions using the dot (.) operator. Comparison
JDO Doc
7

setFilter(filter)

, except for these differences: Equality and ordering comparisons between primitives and instances of wrapper classes are valid. Equality and ordering comparisons of Date fields and Date parameters are valid. White
JDO Doc
7

javax.jdo.Query

the Java language, except for these differences: Equality and ordering comparisons between primitives and instances of wrapper classes are valid. Equality and ordering comparisons of Date fields and Date
JPA Doc
5

javax.persistence.OrderBy

the ordering must correspond to columns for which comparison operators are supported. The dot
Forum
4

Object comparation never matches

/query/jpql/comparison Section "Comparable Data Types" Comparison is supported for values ... again. However, there are still reasons to prefer value comparison as suggested in #2 above: Value comparison is compatible with JPA and therefore more portable. Value comparison