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2

min(x)

Method javax.persistence.criteria.CriteriaBuilder Expression<N> min( Expression<N> x ) Create an aggregate expression applying the numerical min operation. Parameters: x - expression representing input value to min operation Returns: min expression Since: JPA 2.0
2

max(x)

Method javax.persistence.criteria.CriteriaBuilder Expression<N> max( Expression<N> x ) Create an aggregate expression applying the numerical max operation. Parameters: x - expression representing input value to max operation Returns: max expression Since: JPA 2.0
2

like(x, pattern, escapeChar)

Method javax.persistence.criteria.CriteriaBuilder Predicate like( Expression<T> x, Expression<T> pattern, char escapeChar ) Create a predicate for testing whether the expression satisfies the given pattern. Parameters: x - string expression pattern - string expression escapeChar - escape character Returns: like predicate Since: JPA 2.0
2

like(x, pattern, escapeChar)

Method javax.persistence.criteria.CriteriaBuilder Predicate like( Expression<T> x, String pattern, Expression<T> escapeChar ) Create a predicate for testing whether the expression satisfies the given pattern. Parameters: x - string expression pattern - string escapeChar - escape character expression Returns: like predicate Since: JPA 2.0
2

locate(x, pattern)

Method javax.persistence.criteria.CriteriaBuilder Expression<Integer> locate( Expression<String> x, String pattern ) Create expression to locate the position of one string within another, returning ... to be located is not found, 0 is returned. Parameters: x - expression for string to be searched
2

lower(x)

Method javax.persistence.criteria.CriteriaBuilder Expression<String> lower( Expression<String> x ) Create expression for converting a string to lowercase. Parameters: x - string expression Returns: expression to convert to lowercase Since: JPA 2.0
2

locate(x, pattern, from)

Method javax.persistence.criteria.CriteriaBuilder Expression<Integer> locate( Expression<String> x, String pattern, int from ) Create expression to locate the position of one string ... . If the string to be located is not found, 0 is returned. Parameters: x - expression for string
2

groupBy(grouping)

) Specify the expressions that are used to form groups over the query results. Replaces the previous specified grouping expressions, if any. If no grouping expressions are specified, any previously added grouping expressions are simply removed. This method only overrides the return type
2

orderBy(o)

the ordering expressions that are used to order the query results. Replaces the previous ordering expressions, if any. If no ordering expressions are specified, the previous ordering, if any, is simply ... of the ordering expressions determines the precedence, whereby the leftmost has highest precedence. Parameters: o
2

orderBy(o)

the ordering expressions that are used to order the query results. Replaces the previous ordering expressions, if any. If no ordering expressions are specified, the previous ordering, if any, is simply removed, and results will be returned in no particular order. The order of the ordering expressions

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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