Package org.apache.olingo.odata2.jpa.processor.api.jpql

Class JPQLStatement

java.lang.Object

org.apache.olingo.odata2.jpa.processor.api.jpql.JPQLStatement

public class JPQLStatement
extends Object

The class represents a Java Persistence Query Language (JPQL) Statement. The JPQL statement is built using a builder namely JPQLStatement.JPQLStatementBuilder . Based upon the JPQL Context types ( JPQLContextType different kinds of JPQL statements are built. The JPQL statements thus generated can be executed using JPA Query APIs to fetch JPA entities.

See Also:

• JPQLBuilderFactory
• JPQLContextView

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	JPQLStatement.DELIMITER
static class	JPQLStatement.JPQLStatementBuilder	The abstract class is extended by specific JPQL statement builders for building JPQL statements like Select statements Select single statements Select statements with Join Insert/Modify/Delete statements A default statement builder for building each kind of JPQL statements is provided by the library.
static final class	JPQLStatement.KEYWORD
static final class	JPQLStatement.Operator

Field Summary

Fields

Modifier and Type	Field	Description
protected String	statement

Method Summary

Modifier and Type	Method	Description
static JPQLStatement.JPQLStatementBuilder	createBuilder(JPQLContextView context)	The method is used for creating an instance of JPQL Statement Builder for building JPQL statements.
String	toString()	The method provides a String representation of JPQLStatement.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

statement

protected String statement

Method Details

createBuilder

public static JPQLStatement.JPQLStatementBuilder createBuilder(JPQLContextView context)
                                                        throws ODataJPARuntimeException

The method is used for creating an instance of JPQL Statement Builder for building JPQL statements. The JPQL Statement builder is created based upon the JPQL Context.

Parameters:

context - a non null value of JPQLContextView . The context is expected to be set to be built with no errors.

Returns:

an instance of JPQL statement builder

Throws:

ODataJPARuntimeException - Caso ocorra exceção

toString

public String toString()

The method provides a String representation of JPQLStatement.

Overrides:

toString in class Object