com.netrics.likeit

Class NetricsArrayRecOpSrc

java.lang.Object

com.netrics.likeit.NetricsArrayRecOpSrc

All Implemented Interfaces:

NetricsRecOpSrc

public class NetricsArrayRecOpSrc
extends java.lang.Object
implements NetricsRecOpSrc

An array backed source for record operations. This is an implementation of the NetricsRecOpSrc interface. It provides for storing and returning a fixed number of records. It does not provide an open ended stream. Instead it provides a simple batch of records.

See Also:

NetricsRecOp, NetricsRecOpSrc, NetricsServerInterface.doRecOps(String,boolean,NetricsRecOpSrc)

Constructor Summary

Constructors

Constructor and Description
NetricsArrayRecOpSrc() Create an empty source.
NetricsArrayRecOpSrc(NetricsRecOp... rec_ops) Create a source with an initial set of record operations.

Method Summary

Modifier and Type	Method and Description
void	addRecOp(NetricsRecOp... rec_ops) Add a set of record operations to the source.
boolean	canReset() Returns true as this class supports the reset operation.
NetricsRecOp	getCur() Returns the current record operation.
NetricsRecOp	getNext() Returns the next record operation.
boolean	hasNext() True if getNext will return a record operation.
void	reset() Reset the scan of record back to the beginning.
int	size() Return the number of RecOps in this source.

Methods inherited from class java.lang.Object

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

Constructor Detail

NetricsArrayRecOpSrc

public NetricsArrayRecOpSrc()

Create an empty source. This creates an empty source. Record operations must be added using addRecOp.

NetricsArrayRecOpSrc

public NetricsArrayRecOpSrc(NetricsRecOp... rec_ops)

Create a source with an initial set of record operations. This creates a record operation source and populates it with an initial set of record operations.

Parameters:

rec_ops - the initial record operations.

Method Detail

addRecOp

public void addRecOp(NetricsRecOp... rec_ops)

Add a set of record operations to the source. This adds a set of record operations to the end of the current list of record operations for this source.

Parameters:

rec_ops - the set of record operations to add.

size

public int size()

Return the number of RecOps in this source.

Returns:

the total number RecOps in this source object.

hasNext

public boolean hasNext()
                throws NetricsRecSrcException

True if getNext will return a record operation.

Specified by:

hasNext in interface NetricsRecOpSrc

Returns:

True if there is another record operation, false otherwise.

Throws:

NetricsRecSrcException - if an error occurs.

getNext

public NetricsRecOp getNext()
                     throws NetricsRecSrcException

Returns the next record operation.

Specified by:

getNext in interface NetricsRecOpSrc

Returns:

the next record operation, null if there is no next record.

Throws:

NetricsRecSrcException - if an error occurs.

getCur

public NetricsRecOp getCur()

Returns the current record operation. This returns the last record operation fetched. If no record operation has been fetched, or getNext() was called at the end of file, this returns null.

Specified by:

getCur in interface NetricsRecOpSrc

Returns:

the current record operation, null if no current record operation set.

canReset

public boolean canReset()

Returns true as this class supports the reset operation.

Specified by:

canReset in interface NetricsRecOpSrc

Returns:

true

reset

public void reset()
           throws NetricsRecSrcException,
                  java.lang.UnsupportedOperationException

Reset the scan of record back to the beginning. This resets the scan of records back to the initial state. After this call there is no current record and getNext will retrieve the first record.

Specified by:

reset in interface NetricsRecOpSrc

Throws:

NetricsRecSrcException - for agreement with interface, never thrown

java.lang.UnsupportedOperationException - for agreement with interface, never thrown.