Module org.eclipse.persistence.core
Package org.eclipse.persistence.internal.queries

Class ReportItem

java.lang.Object
org.eclipse.persistence.internal.queries.ReportItem
All Implemented Interfaces:
Serializable, Cloneable
Direct Known Subclasses:
ConstructorReportItem
public class ReportItem extends Object implements Cloneable, Serializable
Purpose: represents an item requested (i.e. field for SELECT)
Since:
2.0
See Also:

  • Field Details

    • attributeExpression

      protected Expression attributeExpression
      Expression (partial) describing the attribute wanted

    • name

      protected String name
      Name given for item, can be used to retrieve value from result. Useful if same field retrieved multiple times

    • mapping

      protected DatabaseMapping mapping
      Mapping which relates field to attribute, used to convert value and determine reference descriptor

    • descriptor

      protected ClassDescriptor descriptor
      Descriptor for object result that is not based on an expression

    • resultType

      protected Class<?> resultType
      Result type for this report item.

    • joinedAttributeManager

      protected JoinedAttributeManager joinedAttributeManager
      Stores the Join information for this item

    • resultIndex

      protected int resultIndex
      Stores the row index for this item, given multiple results and joins

  • Constructor Details

    • ReportItem

      public ReportItem()

    • ReportItem

      public ReportItem(String name, Expression attributeExpression)

  • Method Details

    • clone

      public Object clone()
      Overrides:
      clone in class Object

    • getAttributeExpression

      public Expression getAttributeExpression()

    • setAttributeExpression

      public void setAttributeExpression(Expression attributeExpression)

    • getDescriptor

      public ClassDescriptor getDescriptor()

    • getJoinedAttributeManager

      public JoinedAttributeManager getJoinedAttributeManager()
      INTERNAL: Set the list of expressions that represent elements that are joined because of their mapping for this query.

    • getJoinedAttributeManagerInternal

      public JoinedAttributeManager getJoinedAttributeManagerInternal()

    • hasJoining

      public boolean hasJoining()
      INTERNAL: Return if any attributes are joined. To avoid the initialization of the JoinedAttributeManager this should be first checked before accessing.

    • getMapping

      public DatabaseMapping getMapping()

    • getName

      public String getName()

    • getResultIndex

      public int getResultIndex()

    • getResultType

      public Class<?> getResultType()

    • initialize

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

    • isConstructorItem

      public boolean isConstructorItem()

    • setDescriptor

      public void setDescriptor(ClassDescriptor descriptor)

    • setJoinedAttributeManager

      public void setJoinedAttributeManager(JoinedAttributeManager joinManager)

    • setMapping

      public void setMapping(DatabaseMapping mapping)

    • setResultIndex

      public void setResultIndex(int resultIndex)

    • setResultType

      public void setResultType(Class<?> resultType)

    • toString

      public String toString()
      Overrides:
      toString in class Object