org.eclipse.persistence.queries
Class ConstructorReportItem

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

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

ConstructorReportItem()
Create a new constructor item.

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

Method Summary

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, 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