Package cz.cvut.kbss.jopa.model.query.criteria

Interface CriteriaBuilder

All Superinterfaces:

PredicateFactory

All Known Implementing Classes:

CriteriaBuilderImpl

public interface CriteriaBuilder
extends PredicateFactory

Used to construct criteria queries, compound selections, expressions, predicates, orderings.

Nested Class Summary

Nested classes/interfaces inherited from interface cz.cvut.kbss.jopa.model.query.criteria.PredicateFactory

PredicateFactory.In<T>

Method Summary

Modifier and Type	Method	Description
<N extends Number> Expression<N>	abs(Expression<N> x)	Create an expression that returns the absolute value of its argument.
Order	asc(Expression<?> x)	Create an ordering by the ascending value of the expression.
<N extends Number> Expression<N>	ceil(Expression<N> x)	Create an expression that returns the smallest (closest to negative infinity) numeric value that is greater than or equal to the argument and is equal to a mathematical integer.
Expression<Integer>	count(Expression<?> x)	Create an aggregate expression applying the count operation.
<T> CriteriaQuery<T>	createQuery(Class<T> resultClass)	Create a CriteriaQuery object with the specified result type.
Order	desc(Expression<?> x)	Create an ordering by the descending value of the expression.
<N extends Number> Expression<N>	floor(Expression<N> x)	Create an expression that returns the largest (closest to positive infinity) numeric value that is less than or equal to the argument and is equal to a mathematical integer.
Expression<String>	lang(Path<String> x)	Create expression for extracting language tag from a string literal.
Expression<Integer>	length(Expression<String> x)	Create expression to return length of a string.
Expression<String>	literal(String value, String languageTag)	Create an expression for a string literal with language tag.
<T> Expression<T>	literal(T value)	Create an expression for a literal.
Expression<String>	lower(Expression<String> x)	Create expression for converting a string to lowercase.
<T> ParameterExpression<T>	parameter(Class<T> paramClass)	Create a parameter expression.
<T> ParameterExpression<T>	parameter(Class<T> paramClass, String name)	Create a parameter expression with the given name.
Expression<String>	upper(Expression<String> x)	Create expression for converting a string to uppercase.

Methods inherited from interface cz.cvut.kbss.jopa.model.query.criteria.PredicateFactory

and, and, equal, equal, equal, greaterThan, greaterThan, greaterThanOrEqual, greaterThanOrEqual, in, isMember, isNotMember, lessThan, lessThan, lessThanOrEqual, lessThanOrEqual, like, like, not, notEqual, notEqual, notIn, notLike, notLike, or, or

Method Details

createQuery

<T> CriteriaQuery<T> createQuery(Class<T> resultClass)

Create a CriteriaQuery object with the specified result type.

Parameters:

resultClass - type of the query result

Returns:

criteria query object

abs

<N extends Number> Expression<N> abs(Expression<N> x)

Create an expression that returns the absolute value of its argument.

Parameters:

x - expression

Returns:

absolute value

ceil

<N extends Number> Expression<N> ceil(Expression<N> x)

Create an expression that returns the smallest (closest to negative infinity) numeric value that is greater than or equal to the argument and is equal to a mathematical integer.

Parameters:

x - expression

Returns:

ceiling value

floor

<N extends Number> Expression<N> floor(Expression<N> x)

Create an expression that returns the largest (closest to positive infinity) numeric value that is less than or equal to the argument and is equal to a mathematical integer.

Parameters:

x - expression

Returns:

floor value

count

Expression<Integer> count(Expression<?> x)

Create an aggregate expression applying the count operation. Return type of count function in SPARQL is xsd:integer which JOPA internally represents as Integer.

Parameters:

x - expression representing input value to count operation

Returns:

count expression

length

Expression<Integer> length(Expression<String> x)

Create expression to return length of a string.

Parameters:

x - string expression

Returns:

length expression

parameter

<T> ParameterExpression<T> parameter(Class<T> paramClass)

Create a parameter expression.

Parameters:

paramClass - parameter class

Returns:

parameter expression

parameter

<T> ParameterExpression<T> parameter(Class<T> paramClass,
 String name)

Create a parameter expression with the given name.

Parameters:

paramClass - parameter class

name - name that can be used to refer to the parameter

Returns:

parameter expression

literal

<T> Expression<T> literal(T value)

Create an expression for a literal.

Parameters:

value - value represented by the expression

Returns:

expression literal

literal

Expression<String> literal(String value,
 String languageTag)

Create an expression for a string literal with language tag.

Parameters:

value - string value represented by the expression

languageTag - string language tag

Returns:

expression literal

lower

Expression<String> lower(Expression<String> x)

Create expression for converting a string to lowercase.

Parameters:

x - string expression

Returns:

expression to convert to lowercase

upper

Expression<String> upper(Expression<String> x)

Create expression for converting a string to uppercase.

Parameters:

x - string expression

Returns:

expression to convert to uppercase

lang

Expression<String> lang(Path<String> x)

Create expression for extracting language tag from a string literal.

Parameters:

x - String-valued attribute

Returns:

Expression to extract language tag

asc

Order asc(Expression<?> x)

Create an ordering by the ascending value of the expression.

Parameters:

x - expression used to define the ordering

Returns:

ascending ordering corresponding to the expression

desc

Order desc(Expression<?> x)

Create an ordering by the descending value of the expression.

Parameters:

x - expression used to define the ordering

Returns:

descending ordering corresponding to the expression