About string

manual

Strings in JPQL and Criteria Queries

Explains string expressions in JPQL queries, including LIKE, LOCATE, LOWER, UPPER, TRIM, CONCAT and SUBSTRING. String values may appear in JPQL queries in various forms: as  string literals - e.g. 'abc' , ''. as parameters - when string values are assigned as arguments. as  path ...

 
api-jpa

javax.persistence.criteria.CriteriaBuilder

Used to construct criteria queries, compound selections, expressions, predicates, orderings.(Interface of JPA)

 
api-jpa

javax.persistence.criteria.Expression

Type for query expressions.(Interface of JPA)

 
manual

Literals in JPQL and Criteria Queries

Describes literals in JPQL, including null, false, true, numbers, strings, dates enums and types.... ( TRUE and FALSE ), numeric literals (e.g. 100 ), string literals (e.g. 'abc' ), enum literals (e.g. ... Literals Numeric Literals String Literals Date and Time Literals Enum ... currently supported by all JPA implementations. String Literals JPQL follows the syntax of SQL for string literals in ...

 
api-jdo

javax.jdo.Constants

Constant values used in JDO.(Interface of JDO)

 
manual

JPA Query Expressions (JPQL / Criteria)

Describes JPA query (JPQL / Criteria API) expressions (literals, operators and functions).... See JavaDoc Reference Page... ). String expressions ( like like(x, pattern) CriteriaBuilder's ... method Create expression to return length of a string. See JavaDoc Reference Page... , locate locate(x, ...

 
manual

JPA Persistable Types

Explains how JPA manages types, including entity classes, embeddable classes, primitive types, wrappers, string, date, enum, collections and maps.... Simple Java data types: Primitive types, Wrappers, String, Date and Math types. Multi value types - Collections, ... public class Address { String street ; String city ; String state ; String ...

 
api-jdo

addSubquery(sub, variableDeclaration, candidateCollectionExpression, parameters)

Add a subquery to this query.(Method of javax.jdo.Query)

 
api-jdo

jdoMakeDirty(fieldName)

Explicitly mark this instance and this field dirty.(Method of javax.jdo.spi.PersistenceCapable)

 
api-jdo

newQuery(language, query)

Create a new Query using the specified language.(Method of javax.jdo.PersistenceManager)