Package com.tangosol.util

Class PagedIterator

java.lang.Object

com.tangosol.util.Base

com.tangosol.util.PagedIterator

All Implemented Interfaces:

Iterator

public class PagedIterator
extends Base
implements Iterator

PagedIterator is an Iterator implementation based on a concept of a page Advancer - a pluggable component that knows how to supply a next page of objects to iterate through. As common to iterators, this implementation is not thread safe.

Since:

Coherence 3.4

Author:

gg 2008.01.25

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	PagedIterator.Advancer	Advancer is a pluggable component that knows how to load a new page (Collection) of objects to be used by the enclosing PagedIterator.

Nested classes/interfaces inherited from class com.tangosol.util.Base

Base.LoggingWriter

Field Summary

Fields

Modifier and Type	Field	Description
protected PagedIterator.Advancer	m_advancer	The underlying Advancer.
protected Iterator	m_iterPage	An Iterator for the current page.
protected Object	m_oCurr	Currently "Active" object.

Fields inherited from class com.tangosol.util.Base

LOG_ALWAYS, LOG_CONFIG, LOG_DEBUG, LOG_ERR, LOG_INFO, LOG_MAX, LOG_MIN, LOG_QUIET, LOG_WARN, POWER_0, POWER_G, POWER_K, POWER_M, POWER_T, UNIT_D, UNIT_H, UNIT_M, UNIT_MS, UNIT_NS, UNIT_S, UNIT_US

Constructor Summary

Constructors

Constructor	Description
PagedIterator(PagedIterator.Advancer advancer)	Construct a PagedIterator based on the specified Advancer.

Method Summary

Modifier and Type	Method	Description
boolean	hasNext()	Check whether or not the iterator has more elements.
Object	next()	Return the next element in the iteration.
void	remove()	Removes from the underlying collection the last element returned by the iterator.

Methods inherited from class com.tangosol.util.Base

azzert, azzert, azzert, azzertFailed, breakLines, breakLines, capitalize, checkNotEmpty, checkNotNull, checkRange, computeSafeWaitTime, decimalValue, dup, dup, ensureBigDecimal, ensureClassLoader, ensureRuntimeException, ensureRuntimeException, equals, equalsDeep, err, err, err, err, err, escape, formatDateTime, getCallerStackFrame, getCommonMonitor, getCommonMonitor, getCommonMonitor, getContextClassLoader, getContextClassLoader, getDeepMessage, getErr, getLastSafeTimeMillis, getLog, getMaxDecDigits, getMaxHexDigits, getOriginalException, getOut, getProcessRandom, getRandom, getRandomBinary, getRandomBinary, getRandomString, getSafeTimeMillis, getStackFrame, getStackFrames, getStackTrace, getStackTrace, getStackTrace, getThreadFactory, getTimeZone, getUpTimeMillis, hashCode, hexValue, indentString, indentString, isDecimal, isHex, isLogEcho, isOctal, log, log, log, log, log, makeInteger, makeLong, makeThread, mergeArray, mergeBooleanArray, mergeByteArray, mergeCharArray, mergeDoubleArray, mergeFloatArray, mergeIntArray, mergeLongArray, mod, mod, octalValue, out, out, out, out, out, pad, parseBandwidth, parseBandwidth, parseDelimitedString, parseHex, parseHex, parseMemorySize, parseMemorySize, parsePercentage, parseTime, parseTime, parseTimeNanos, parseTimeNanos, printStackTrace, randomize, randomize, randomize, randomize, read, read, read, read, read, read, read, replace, setErr, setLog, setLogEcho, setOut, sleep, toBandwidthString, toBandwidthString, toCharEscape, toCrc, toCrc, toCrc, toCrc, toCrc, toDecString, toDelimitedString, toDelimitedString, toDelimitedString, toDelimitedString, toHex, toHex, toHexDump, toHexEscape, toHexEscape, toHexEscape, toHexEscape, toHexString, toMemorySizeString, toMemorySizeString, toQuotedCharEscape, toQuotedStringEscape, toSqlString, toString, toString, toStringEscape, toUnicodeEscape, trace, trace, trace, trace, trace, trace, trace, trace, trace, truncateString, truncateString, wait

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Details

m_advancer

protected PagedIterator.Advancer m_advancer

The underlying Advancer.

m_iterPage

protected Iterator m_iterPage

An Iterator for the current page.

m_oCurr

protected Object m_oCurr

Currently "Active" object.

Constructor Details

PagedIterator

public PagedIterator(PagedIterator.Advancer advancer)

Construct a PagedIterator based on the specified Advancer.

Parameters:

advancer - the underlying Advancer

Method Details

remove

public void remove()

Removes from the underlying collection the last element returned by the iterator.

Specified by:

remove in interface Iterator

hasNext

public boolean hasNext()

Check whether or not the iterator has more elements.

Specified by:

hasNext in interface Iterator

next

public Object next()

Return the next element in the iteration.

Specified by:

next in interface Iterator