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java.lang.Objectcom.sun.mdm.index.page.PageIteratorWrapper
com.sun.mdm.index.master.search.transaction.TransactionIterator
The TransactionIterator class represents an iterator containing the TransactionSummary objects returned by a call to lookupTransaction. Use indexes to page through the TransactionSummary objects and to retrieve specific objects from the iterator.
| Constructor Summary | |
TransactionIterator(PageData pageData,
int pageSize,
int maxElements)
Creates a new instance of the TransactionIterator class that maintains the connection to the server. |
|
TransactionIterator(TransactionSummary[] fullData)
Creates a new instance of the TransactionIterator class that does not maintain the connection to the server. |
|
| Method Summary | |
TransactionSummary |
absolute(int index)
Retrieves a TransactionSummary object at the specified index from the TransactionIterator object. |
TransactionSummary[] |
absolute(int index,
int count)
Retrieves a series of rows from a TransactionIterator object, beginning with the row at the specified index and continuing through the specified number of rows. |
TransactionSummary |
first()
Retrieves the first row from a TransactionIterator object. |
TransactionSummary[] |
first(int count)
Retrieves the first rows in the iterator. |
TransactionSummary |
next()
Retrieves the next row from a TransactionIterator object. |
TransactionSummary[] |
next(int count)
Retrieves the next series of rows in the iterator. |
TransactionSummary |
prev()
Retrieves the previous row from a TransactionIterator object. |
TransactionSummary[] |
prev(int count)
Retrieves the previous series of rows in the iterator. |
void |
setReadForwardOnly(boolean forwardOnly)
Specifies whether the transaction iterator will clear all the DataPage objects of a loaded page (i) once it starts to read and load the next page (i+1). |
void |
sortBy(java.lang.String field,
boolean reverse)
Sorts the objects in the TransactionIterator by the specified comparator. |
void |
sortSummaryBy(java.lang.String field,
boolean reverse)
Sorts the objects in the TransactionIterator by the specified comparator. |
| Methods inherited from class com.sun.mdm.index.page.PageIteratorWrapper |
close, count, currentPosition, getGenericIterator, hasNext |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public TransactionIterator(PageData pageData,
int pageSize,
int maxElements)
pageData - A session bean that stores the data retrieved from
the server.pageSize - The size of each unit of data retrieved from the
server.maxElements - The maximum number of elements retrieved for a
transaction history search.
public TransactionIterator(TransactionSummary[] fullData)
fullData - An array of all objects in the result set.
| Method Detail |
public TransactionSummary absolute(int index)
throws PageException,
java.rmi.RemoteException
index - The row to retrieve.
TransactionSummary - A TransactionSummary object.
PageException - Thrown if an error occurs while
retrieving the object.
java.rmi.RemoteException - Thrown if the connection to
the server goes down during processing.
public TransactionSummary[] absolute(int index,
int count)
throws PageException,
java.rmi.RemoteException
index - The first row to retrieve.count - The total number of rows to retrieve.
TransactionSummary[] - An array of
TransactionSummary objects.
PageException - Thrown if an error occurs while
retrieving the objects.
java.rmi.RemoteException - Thrown if the connection to
the server goes down during processing.
public TransactionSummary first()
throws PageException,
java.rmi.RemoteException
TransactionSummary - A TransactionSummary object.
PageException - Thrown if an error occurs while
retrieving the object.
java.rmi.RemoteException - Thrown if the connection to
the server goes down during processing.
public TransactionSummary[] first(int count)
throws PageException,
java.rmi.RemoteException
count - The total number of rows to retrieve.
TransactionSummary[] - An array of
TransactionSummary objects.
PageException - Thrown if an error occurs while
retrieving the objects.
java.rmi.RemoteException - Thrown if the connection to
the server goes down during processing.
public TransactionSummary next()
throws java.rmi.RemoteException,
PageException
TransactionSummary - A TransactionSummary object.
PageException - Thrown if the call to hasNext
returns false.
java.rmi.RemoteException - Thrown if the connection to
the server goes down during processing.
public TransactionSummary[] next(int count)
throws PageException,
java.rmi.RemoteException
count - The total number of rows to retrieve.
TransactionSummary[] - An array of
TransactionSummary objects.
PageException - Thrown if the index is
already at the end of the iterator.
java.rmi.RemoteException - Thrown if the connection to
the server goes down during processing.
public TransactionSummary prev()
throws PageException,
java.rmi.RemoteException
TransactionSummary - A TransactionSummary object.
PageException - Thrown if the index is already at the
beginning of the iterator.
java.rmi.RemoteException - Thrown if the connection to
the server goes down during processing.
public TransactionSummary[] prev(int count)
throws PageException,
java.rmi.RemoteException
count - The total number of rows to retrieve.
TransactionSummary[] - An array of
TransactionSummary objects.
PageException - Thrown if the index is
already at the beginning of the iterator.
java.rmi.RemoteException - Thrown if the connection to
the server goes down during processing.public void setReadForwardOnly(boolean forwardOnly)
forwardOnly - A Boolean indicator of whether the iterator will clear
old DataPage objects. Specify true to clear old DataPage objects;
specify false to leave the objects in memory.
void - None.
public void sortBy(java.lang.String field,
boolean reverse)
throws PageException,
java.rmi.RemoteException
field - The name of the field to use as sorting criteria.reverse - An indicator of whether to sort in ascending or
descending order. Specify true to sort in descending
order, or specify false to sort in ascending order.
void - None.
PageException - Thrown if there is an error
during sorting.
java.rmi.RemoteException - Thrown if the connection to
the server goes down during processing.
public void sortSummaryBy(java.lang.String field,
boolean reverse)
throws PageException,
java.rmi.RemoteException
field - The name of the field to use as sorting criteria.reverse - An indicator of whether to sort in ascending or
descending order. Specify true to sort in descending
order, or specify false to sort in ascending order.
void - None.
PageException - Thrown if there is an error
during sorting.
java.rmi.RemoteException - Thrown if the connection to
the server goes down during processing.
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