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

All Implemented Interfaces:

StateObject

Direct Known Subclasses:

ModExpressionStateObject, NullIfExpressionStateObject
```
public abstract class AbstractDoubleEncapsulatedExpressionStateObject
extends AbstractEncapsulatedExpressionStateObject
```
This StateObject represents a JPQL expression that has a JPQL identifier followed by two an encapsulated expression with parenthesis, the two expression are separated by a comma.
BNF: expression ::= <identifier>(first_expression, second_expression)

Since:

2.4

Version:

2.4

Author:

Pascal Filion

See Also:

ModExpressionStateObject, NullIfExpressionStateObject, AbstractDoubleEncapsulatedExpression

Field Summary

Fields
Modifier and Type	Field	Description
`static String`	`FIRST_STATE_OBJECT_PROPERTY`	Notifies the first `StateObject` property has changed.
`static String`	`SECOND_STATE_OBJECT_PROPERTY`	Notifies the second `StateObject` property has changed.

Constructor Summary

Constructors
Constructor	Description
`AbstractDoubleEncapsulatedExpressionStateObject(StateObject parent, String firstJpqlFragment, String secondJpqlFragment)`	Creates a new `AbstractDoubleEncapsulatedExpressionStateObject`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`AbstractDoubleEncapsulatedExpression`	`getExpression()`	Returns the actual parsed object if this `StateObject` representation of the JPQL query was created by parsing an existing JPQL query.
`StateObject`	`getFirst()`	Returns the `StateObject` representing the first expression.
`StateObject`	`getSecond()`	Returns the `StateObject` representing the second expression.
`boolean`	`hasFirst()`	Determines whether the `StateObject` representing the first encapsulated expression is present or not.
`boolean`	`hasSecond()`	Determines whether the `StateObject` representing the second encapsulated expression is present or not.
`boolean`	`isEquivalent(StateObject stateObject)`	Determines whether the given `StateObject` is equivalent to this one, i.e.
`void`	`parseFirst(String jpqlFragment)`	Parses the given JPQL fragment, which will represent the first encapsulated expression.
`void`	`parseSecond(String jpqlFragment)`	Parses the given JPQL fragment, which will represent the second encapsulated expression.
`void`	`setFirst(StateObject firstStateObject)`	Sets the given `StateObject` to represent the first encapsulated expression.
`void`	`setSecond(StateObject secondStateObject)`	Sets the given `StateObject` to represent the second encapsulated expression.

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

Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractStateObject
addPropertyChangeListener, children, decorate, equals, findIdentificationVariable, getDeclaration, getDecorator, getGrammar, getManagedTypeProvider, getParent, getQueryBuilder, getRoot, getType, getType, getTypeHelper, getTypeRepository, hashCode, isDecorated, removePropertyChangeListener, setExpression, setParent, toString, toString, toText

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.persistence.jpa.jpql.tools.model.query.StateObject
accept

- Field Detail
  - FIRST_STATE_OBJECT_PROPERTY
```
public static final String FIRST_STATE_OBJECT_PROPERTY
```
    Notifies the first StateObject property has changed.
    
    See Also:
    
    Constant Field Values
  - SECOND_STATE_OBJECT_PROPERTY
```
public static final String SECOND_STATE_OBJECT_PROPERTY
```
    Notifies the second StateObject property has changed.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - AbstractDoubleEncapsulatedExpressionStateObject
```
public AbstractDoubleEncapsulatedExpressionStateObject(StateObject parent,
                                                       String firstJpqlFragment,
                                                       String secondJpqlFragment)
```
    Creates a new AbstractDoubleEncapsulatedExpressionStateObject.
    
    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 Detail
  - getExpression
```
public AbstractDoubleEncapsulatedExpression getExpression()
```
    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 AbstractEncapsulatedExpressionStateObject
    
    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)
  - getFirst
```
public StateObject getFirst()
```
    Returns the StateObject representing the first expression.
    
    Returns:
    
    The first encapsulated StateObject or null if none exists
  - getSecond
```
public StateObject getSecond()
```
    Returns the StateObject representing the second expression.
    
    Returns:
    
    The second encapsulated StateObject or null if none exists
  - hasFirst
```
public boolean hasFirst()
```
    Determines whether the StateObject representing the first encapsulated expression is present or not.
    
    Returns:
    
    true if the first StateObject is not null; false otherwise
  - hasSecond
```
public boolean hasSecond()
```
    Determines whether the StateObject representing the second encapsulated expression is present or not.
    
    Returns:
    
    true if the second StateObject is not null; false otherwise
  - isEquivalent
```
public boolean isEquivalent(StateObject stateObject)
```
    Determines whether the given StateObject is equivalent to this one, i.e. the information of both StateObject is the same.
    
    Specified by:
    
    isEquivalent in interface StateObject
    
    Overrides:
    
    isEquivalent in class AbstractStateObject
    
    Parameters:
    
    stateObject - The StateObject to compare its content to this one
    
    Returns:
    
    true if both object are equivalent; false otherwise
  - parseFirst
```
public void parseFirst(String jpqlFragment)
```
    Parses the given JPQL fragment, which will represent the first encapsulated expression.
    
    Parameters:
    
    jpqlFragment - The string representation of the first encapsulated expression to parse and to convert into a StateObject representation
  - parseSecond
```
public void parseSecond(String jpqlFragment)
```
    Parses the given JPQL fragment, which will represent the second encapsulated expression.
    
    Parameters:
    
    jpqlFragment - The string representation of the second encapsulated expression to parse and to convert into a StateObject representation
  - setFirst
```
public void setFirst(StateObject firstStateObject)
```
    Sets the given StateObject to represent the first encapsulated expression.
    
    Parameters:
    
    firstStateObject - The new encapsulated StateObject representing the first expression
  - setSecond
```
public void setSecond(StateObject secondStateObject)
```
    Sets the given StateObject to represent the second encapsulated expression.
    
    Parameters:
    
    secondStateObject - The new encapsulated StateObject representing the second expression

Class AbstractDoubleEncapsulatedExpressionStateObject

Field Summary

Constructor Summary

Method Summary

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

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

Methods inherited from class java.lang.Object

Methods inherited from interface org.eclipse.persistence.jpa.jpql.tools.model.query.StateObject

Field Detail

FIRST_STATE_OBJECT_PROPERTY

SECOND_STATE_OBJECT_PROPERTY

Constructor Detail

AbstractDoubleEncapsulatedExpressionStateObject

Method Detail

getExpression

getFirst

getSecond

hasFirst

hasSecond

isEquivalent

parseFirst

parseSecond

setFirst

setSecond