Class EntryCursorImpl
- java.lang.Object
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- org.apache.directory.api.ldap.model.cursor.AbstractCursor<Entry>
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- org.apache.directory.ldap.client.api.EntryCursorImpl
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- All Implemented Interfaces:
Closeable
,AutoCloseable
,Iterable<Entry>
,Cursor<Entry>
,EntryCursor
public class EntryCursorImpl extends AbstractCursor<Entry> implements EntryCursor
An implementation of Cursor based on the underlying SearchFuture instance. Note: This is a forward only cursor hence the only valid operations are next(), get() and close()- Author:
- Apache Directory Project
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Constructor Summary
Constructors Constructor Description EntryCursorImpl(SearchCursor searchCursor)
Instantiates a new search cursor, embedding a SearchCursor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
after(Entry element)
This operation is not supported in SearchCursor.void
afterLast()
This operation is not supported in SearchCursor.boolean
available()
Determines whether or not a call to get() will succeed.void
before(Entry element)
This operation is not supported in SearchCursor.void
beforeFirst()
This operation is not supported in SearchCursor.void
close()
void
close(Exception cause)
Closes this Cursor and frees any resources it my have allocated.boolean
first()
This operation is not supported in SearchCursor.Entry
get()
Gets the object at the current position.int
getMessageId()
SearchResultDone
getSearchResultDone()
gives the SearchResultDone message received at the end of search resultsboolean
last()
This operation is not supported in SearchCursor.boolean
next()
Advances this Cursor to the next position.boolean
previous()
This operation is not supported in SearchCursor.-
Methods inherited from class org.apache.directory.api.ldap.model.cursor.AbstractCursor
checkNotClosed, isAfterLast, isBeforeFirst, isClosed, isFirst, isLast, iterator, setClosureMonitor, toString
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Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.directory.api.ldap.model.cursor.Cursor
isAfterLast, isBeforeFirst, isClosed, isFirst, isLast, setClosureMonitor, toString
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Methods inherited from interface java.lang.Iterable
forEach, iterator, spliterator
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Constructor Detail
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EntryCursorImpl
public EntryCursorImpl(SearchCursor searchCursor)
Instantiates a new search cursor, embedding a SearchCursor.- Parameters:
searchCursor
- the embedded SearchResponse cursor
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Method Detail
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next
public boolean next() throws LdapException, CursorException
Advances this Cursor to the next position. If called before explicitly positioning this Cursor, the position is presumed to be before the first element and this method moves the cursor forward to the first element.- Specified by:
next
in interfaceCursor<Entry>
- Returns:
- true if the advance succeeded, false otherwise
- Throws:
LdapException
- if we have get any LDAP exception while operating the cursorCursorException
- if there are problems advancing to this Cursor to the next position, or if this Cursor is closed
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get
public Entry get() throws CursorException
Gets the object at the current position. Cursor implementations may choose to reuse element objects by re-populating them on advances instead of creating new objects on each advance.- Specified by:
get
in interfaceCursor<Entry>
- Returns:
- the object at the current position
- Throws:
CursorException
- if the object at this Cursor's current position cannot be retrieved, or if this Cursor is closed
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getSearchResultDone
public SearchResultDone getSearchResultDone()
gives the SearchResultDone message received at the end of search results- Specified by:
getSearchResultDone
in interfaceEntryCursor
- Returns:
- the SearchResultDone message, null if the search operation fails for any reason
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available
public boolean available()
Determines whether or not a call to get() will succeed.
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close
public void close() throws IOException
- Specified by:
close
in interfaceAutoCloseable
- Specified by:
close
in interfaceCloseable
- Overrides:
close
in classAbstractCursor<Entry>
- Throws:
IOException
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close
public void close(Exception cause) throws IOException
Closes this Cursor and frees any resources it my have allocated. Repeated calls to this method after this Cursor has already been called should not fail with exceptions. The reason argument is the Exception instance thrown instead of the standard CursorClosedException.- Specified by:
close
in interfaceCursor<Entry>
- Overrides:
close
in classAbstractCursor<Entry>
- Parameters:
cause
- exception thrown when this Cursor is accessed after close- Throws:
IOException
- If we can't close the Cursor
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after
public void after(Entry element) throws LdapException, CursorException
This operation is not supported in SearchCursor. Prepares this Cursor, so a subsequent call to Cursor#previous() with a true return value, will have positioned the Cursor on a dataSet element equal to or less than the element argument but not greater. A call to Cursor#next() with a true return value will position the Cursor on a dataSet element greater than the argument. If Cursor#next() returns false then the Cursor is past the last element and so all values in the dataSet are less than or equal to the argument. If Cursor#previous() returns false then the Cursor is positioned before the first element and all elements in the dataSet are greater than the argument.- Specified by:
after
in interfaceCursor<Entry>
- Parameters:
element
- the element to be positioned after- Throws:
LdapException
- if we have get any LDAP exception while operating the cursorCursorException
- if there are problems advancing to this Cursor after the given element, or if this Cursor is closed
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afterLast
public void afterLast() throws LdapException, CursorException
This operation is not supported in SearchCursor. Positions this Cursor after the last element.- Specified by:
afterLast
in interfaceCursor<Entry>
- Throws:
LdapException
- if we have get any LDAP exception while operating the cursorCursorException
- if there are problems advancing to this Cursor after the last position, or if this Cursor is closed
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before
public void before(Entry element) throws LdapException, CursorException
This operation is not supported in SearchCursor. Prepares this Cursor, so a subsequent call to Cursor#next() with a true return value, will have positioned the Cursor on a dataSet element equal to or less than the element argument but not greater. A call to Cursor#previous() with a true return value will position the Cursor on a dataSet element less than the argument. If Cursor#next() returns false then the Cursor is past the last element and so all values in the dataSet are less than the argument. If Cursor#previous() returns false then the Cursor is positioned before the first element and all elements in the dataSet are greater than the argument.- Specified by:
before
in interfaceCursor<Entry>
- Parameters:
element
- the element to be positioned before- Throws:
LdapException
- if we have get any LDAP exception while operating the cursorCursorException
- if there are problems advancing to this Cursor before the given element, or if this Cursor is closed
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beforeFirst
public void beforeFirst() throws LdapException, CursorException
This operation is not supported in SearchCursor. Positions this Cursor before the first element.- Specified by:
beforeFirst
in interfaceCursor<Entry>
- Throws:
LdapException
- if we have get any LDAP exception while operating the cursorCursorException
- if there are problems advancing to this Cursor before the first position, or if this Cursor is closed
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first
public boolean first() throws LdapException, CursorException
This operation is not supported in SearchCursor. Positions this Cursor at the first element.- Specified by:
first
in interfaceCursor<Entry>
- Returns:
- true if the position has been successfully changed to the first element, false otherwise
- Throws:
LdapException
- if we have get any LDAP exception while operating the cursorCursorException
- if there are problems advancing to this Cursor to the first position, or if this Cursor is closed
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last
public boolean last() throws LdapException, CursorException
This operation is not supported in SearchCursor. Positions this Cursor at the last element.- Specified by:
last
in interfaceCursor<Entry>
- Returns:
- true if the position has been successfully changed to the last element, false otherwise
- Throws:
LdapException
- if we have get any LDAP exception while operating the cursorCursorException
- if there are problems advancing to this Cursor to the last position, or if this Cursor is closed
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previous
public boolean previous() throws LdapException, CursorException
This operation is not supported in SearchCursor. Advances this Cursor to the previous position. If called before explicitly positioning this Cursor, the position is presumed to be after the last element and this method moves the cursor back to the last element.- Specified by:
previous
in interfaceCursor<Entry>
- Returns:
- true if the advance succeeded, false otherwise
- Throws:
LdapException
- if we have get any LDAP exception while operating the cursorCursorException
- if there are problems advancing to this Cursor to the previous position, or if this Cursor is closed
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getMessageId
public int getMessageId()
- Specified by:
getMessageId
in interfaceEntryCursor
- Returns:
- the underlying message ID
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