ConstructorReportItem (EclipseLink 2.6.6, API Reference)

java.lang.Object
- org.eclipse.persistence.internal.queries.ReportItem
- - org.eclipse.persistence.queries.ConstructorReportItem

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable
```
public class ConstructorReportItem
extends org.eclipse.persistence.internal.queries.ReportItem
```
Purpose: An item specifying a class constructor method to be used in a ReportQuery's returned results.
Example:
```
      ConstructorReportItem item = new ConstructorReportItem("Employee");
      item.setResultType(Employee.class);
      item.addAttribute("firstName", employees.get("firstName"));
      query.addConstructorReportItem(item);
 
```
When executed will return a collection of ReportQueryResults that contain Employee objects created using the new Employee(firstname) constructor.
See Also:
Serialized Form
Author:

Chris Delahunt

Since:

TopLink Essentials 1.0

Field Summary

Fields
Modifier and Type	Field and Description
`protected java.lang.reflect.Constructor`	`constructor`
`protected java.lang.Class[]`	`constructorArgTypes`
`protected java.util.List`	`constructorMappings`
`protected java.util.List`	`reportItems`

Fields inherited from class org.eclipse.persistence.internal.queries.ReportItem
attributeExpression, descriptor, joinedAttributeManager, mapping, name, resultIndex, resultType

Constructor Summary

Constructors
Constructor and Description

ConstructorReportItem()
Create a new constructor item.

ConstructorReportItem(java.lang.String name)
Create a new constructor item.

Constructors
Constructor and Description
`ConstructorReportItem()` Create a new constructor item.
`ConstructorReportItem(java.lang.String name)` Create a new constructor item.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addAttribute(Expression attributeExpression)` Method to add an expression to be used to return the parameter that is then passed into the constructor method.
`void`	`addAttribute(java.lang.String attributeName, Expression attributeExpression, java.util.List joinedExpressions)` Add the attribute with joining.
`void`	`addItem(org.eclipse.persistence.internal.queries.ReportItem item)`
`java.lang.reflect.Constructor`	`getConstructor()` INTERNAL: Return the constructor.
`java.lang.Class[]`	`getConstructorArgTypes()`
`java.util.List`	`getConstructorMappings()` INTERNAL: Return the mappings for the items.
`java.util.List`	`getReportItems()`
`void`	`initialize(ReportQuery query)` INTERNAL: Looks up mapping for attribute during preExecute of ReportQuery
`boolean`	`isConstructorItem()`
`void`	`setConstructor(java.lang.reflect.Constructor constructor)` INTERNAL: Set the constructor.
`void`	`setConstructorArgTypes(java.lang.Class[] constructorArgTypes)`
`void`	`setConstructorMappings(java.util.List constructorMappings)` INTERNAL: Return the mappings for the items.
`void`	`setReportItems(java.util.List reportItems)`
`java.lang.String`	`toString()`

Methods inherited from class org.eclipse.persistence.internal.queries.ReportItem
clone, getAttributeExpression, getDescriptor, getJoinedAttributeManager, getJoinedAttributeManagerInternal, getMapping, getName, getResultIndex, getResultType, hasJoining, isPlaceHolder, setAttributeExpression, setDescriptor, setJoinedAttributeManager, setMapping, setResultIndex, setResultType

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

Field Detail

constructorArgTypes

protected java.lang.Class[] constructorArgTypes

constructorMappings

protected java.util.List constructorMappings

reportItems
```
protected java.util.List reportItems
```

constructor

protected java.lang.reflect.Constructor constructor

Constructor Detail
- ConstructorReportItem
```
public ConstructorReportItem()
```
  Create a new constructor item.
- ConstructorReportItem
```
public ConstructorReportItem(java.lang.String name)
```
  Create a new constructor item.
  
  Parameters:
  name - string used to look up this result in the ReportQueryResult.

Method Detail

addAttribute
```
public void addAttribute(Expression attributeExpression)
```
Method to add an expression to be used to return the parameter that is then passed into the constructor method. Similar to ReportQuery's addAttribute method, but name is not needed.

addAttribute

public void addAttribute(java.lang.String attributeName,
                Expression attributeExpression,
                java.util.List joinedExpressions)

Add the attribute with joining.

addItem

public void addItem(org.eclipse.persistence.internal.queries.ReportItem item)

getConstructorArgTypes

public java.lang.Class[] getConstructorArgTypes()

getConstructorMappings
```
public java.util.List getConstructorMappings()
```
INTERNAL: Return the mappings for the items.

getConstructor

public java.lang.reflect.Constructor getConstructor()

INTERNAL: Return the constructor.

setConstructor

public void setConstructor(java.lang.reflect.Constructor constructor)

INTERNAL: Set the constructor.

getReportItems

public java.util.List getReportItems()

initialize
```
public void initialize(ReportQuery query)
                throws QueryException
```
INTERNAL: Looks up mapping for attribute during preExecute of ReportQuery

Overrides:

initialize in class org.eclipse.persistence.internal.queries.ReportItem

Throws:

QueryException

isConstructorItem
```
public boolean isConstructorItem()
```
Overrides:

isConstructorItem in class org.eclipse.persistence.internal.queries.ReportItem

setConstructorArgTypes

public void setConstructorArgTypes(java.lang.Class[] constructorArgTypes)

setConstructorMappings

public void setConstructorMappings(java.util.List constructorMappings)

INTERNAL: Return the mappings for the items.

setReportItems

public void setReportItems(java.util.List reportItems)

toString
```
public java.lang.String toString()
```
Overrides:

toString in class org.eclipse.persistence.internal.queries.ReportItem

Class ConstructorReportItem

Field Summary

Fields inherited from class org.eclipse.persistence.internal.queries.ReportItem

Constructor Summary

Method Summary

Methods inherited from class org.eclipse.persistence.internal.queries.ReportItem

Methods inherited from class java.lang.Object

Field Detail

constructorArgTypes

constructorMappings

reportItems

constructor

Constructor Detail

ConstructorReportItem

ConstructorReportItem

Method Detail

addAttribute

addAttribute

addItem

getConstructorArgTypes

getConstructorMappings

getConstructor

setConstructor

getReportItems

initialize

isConstructorItem

setConstructorArgTypes

setConstructorMappings

setReportItems

toString