Module org.eclipse.persistence.jpa.jpql

Package org.eclipse.persistence.jpa.jpql.tools.model.query

Class ModExpressionStateObject

java.lang.Object

org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractStateObject

org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractEncapsulatedExpressionStateObject

org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractDoubleEncapsulatedExpressionStateObject

org.eclipse.persistence.jpa.jpql.tools.model.query.ModExpressionStateObject

All Implemented Interfaces:

StateObject

public class ModExpressionStateObject
extends AbstractDoubleEncapsulatedExpressionStateObject

The modulo operation finds the remainder of division of one number by another.

It takes two integer arguments and returns an integer.

BNF: expression ::= MOD(simple_arithmetic_expression, simple_arithmetic_expression)

Since:

2.4

Version:

2.4

See Also:

• ModExpression

Field Summary

Fields inherited from class org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractDoubleEncapsulatedExpressionStateObject

FIRST_STATE_OBJECT_PROPERTY, SECOND_STATE_OBJECT_PROPERTY

Constructor Summary

Constructors

Constructor	Description
ModExpressionStateObject(StateObject parent)	Creates a new ModExpressionStateObject.
ModExpressionStateObject(StateObject parent, String firstJpqlFragment, String secondJpqlFragment)	Creates a new ModExpressionStateObject.
ModExpressionStateObject(StateObject parent, StateObject firstStateObject, StateObject secondStateObject)	Creates a new ModExpressionStateObject.

Method Summary

Modifier and Type	Method	Description
void	accept(StateObjectVisitor visitor)	Visits this StateObject by the given visitor.
ModExpression	getExpression()	Returns the actual parsed object if this StateObject representation of the JPQL query was created by parsing an existing JPQL query.
protected String	getFirstQueryBNFId()	Returns the unique identifier of the BNF that will be used to parse a JPQL fragment as the first encapsulated expression.
String	getIdentifier()	Returns the JPQL identifier of the expression represented by this AbstractSingleEncapsulatedExpressionStateObject.
protected String	getSecondQueryBNFId()	Returns the unique identifier of the BNF that will be used to parse a JPQL fragment as the second encapsulated expression.
void	setExpression(ModExpression expression)	Keeps a reference of the parsed object object, which should only be done when this object is instantiated during the conversion of a parsed JPQL query into StateObjects.

Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractDoubleEncapsulatedExpressionStateObject

addChildren, getFirst, getSecond, hasFirst, hasSecond, isEquivalent, parseFirst, parseSecond, setFirst, setSecond, toTextEncapsulatedExpression

Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractEncapsulatedExpressionStateObject

toTextInternal

Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractStateObject

acceptUnknownVisitor, acceptUnknownVisitor, addProblems, addPropertyChangeListener, areEquivalent, buildProblem, buildProblem, buildStateObject, buildStateObjects, checkParent, children, decorate, equals, findIdentificationVariable, firePropertyChanged, getChangeSupport, getDeclaration, getDecorator, getGrammar, getManagedTypeProvider, getParent, getQueryBuilder, getRoot, getType, getType, getTypeHelper, getTypeRepository, hashCode, initialize, isDecorated, parent, parent, parent, removePropertyChangeListener, setExpression, setParent, toString, toString, toStringInternal, toStringItems, toText

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

ModExpressionStateObject

public ModExpressionStateObject(StateObject parent)

Creates a new ModExpressionStateObject.

Parameters:

parent - The parent of this state object, which cannot be null

Throws:

NullPointerException - The given parent cannot be null

ModExpressionStateObject

public ModExpressionStateObject(StateObject parent,
 StateObject firstStateObject,
 StateObject secondStateObject)

Creates a new ModExpressionStateObject.

Parameters:

parent - The parent of this state object, which cannot be null

firstStateObject - The StateObject representing the first expression

secondStateObject - The StateObject representing the second expression

Throws:

NullPointerException - The given parent cannot be null

ModExpressionStateObject

public ModExpressionStateObject(StateObject parent,
 String firstJpqlFragment,
 String secondJpqlFragment)

Creates a new ModExpressionStateObject.

Parameters:

parent - The parent of this state object, which cannot be null

firstJpqlFragment - The string representation of the first encapsulated expression to parse and to convert into a StateObject representation

secondJpqlFragment - The string representation of the second encapsulated expression to parse and to convert into a StateObject representation

Throws:

NullPointerException - The given parent cannot be null

Method Details

accept

public void accept(StateObjectVisitor visitor)

Description copied from interface: StateObject

Visits this StateObject by the given visitor.

Parameters:

visitor - The visitor to visit this object

getExpression

public ModExpression getExpression()

Description copied from interface: StateObject

Returns the actual parsed object if this StateObject representation of the JPQL query was created by parsing an existing JPQL query.

Specified by:

getExpression in interface StateObject

Overrides:

getExpression in class AbstractDoubleEncapsulatedExpressionStateObject

Returns:

The parsed object when a JPQL query is parsed and converted into a StateObject or null when the JPQL query is manually created (i.e. not from a string)

getFirstQueryBNFId

protected String getFirstQueryBNFId()

Description copied from class: AbstractDoubleEncapsulatedExpressionStateObject

Returns the unique identifier of the BNF that will be used to parse a JPQL fragment as the first encapsulated expression.

Specified by:

getFirstQueryBNFId in class AbstractDoubleEncapsulatedExpressionStateObject

Returns:

The query BNF ID for the first encapsulated expression

getIdentifier

public String getIdentifier()

Description copied from class: AbstractEncapsulatedExpressionStateObject

Returns the JPQL identifier of the expression represented by this AbstractSingleEncapsulatedExpressionStateObject.

Specified by:

getIdentifier in class AbstractEncapsulatedExpressionStateObject

Returns:

The JPQL identifier that is shown before the left parenthesis

getSecondQueryBNFId

protected String getSecondQueryBNFId()

Description copied from class: AbstractDoubleEncapsulatedExpressionStateObject

Returns the unique identifier of the BNF that will be used to parse a JPQL fragment as the second encapsulated expression.

Specified by:

getSecondQueryBNFId in class AbstractDoubleEncapsulatedExpressionStateObject

Returns:

The query BNF ID for the second encapsulated expression

setExpression

public void setExpression(ModExpression expression)

Keeps a reference of the parsed object object, which should only be done when this object is instantiated during the conversion of a parsed JPQL query into StateObjects.

Parameters:

expression - The parsed object representing a MOD expression