SampleStateKind Class Reference
[Sample States]

Indicates whether or not a sample has ever been read. More...

List of all members.

Static Public Attributes
static final int	READ_SAMPLE_STATE = 0x0001 << 0
	Sample has been read.
static final int	NOT_READ_SAMPLE_STATE = 0x0001 << 1
	Sample has not been read.
static final int	ANY_SAMPLE_STATE = 0xffff
	Any sample state SampleStateKind.READ_SAMPLE_STATE | SampleStateKind.NOT_READ_SAMPLE_STATE.

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Detailed Description

Indicates whether or not a sample has ever been read.

For each sample received, the middleware internally maintains a sample_state relative to each com.rti.dds.subscription.DataReader. The sample state can be either:

• SampleStateKind.READ_SAMPLE_STATE indicates that the com.rti.dds.subscription.DataReader has already accessed that sample by means of a read or take operation.

• SampleStateKind.NOT_READ_SAMPLE_STATE indicates that the com.rti.dds.subscription.DataReader has not accessed that sample before.

The sample state will, in general, be different for each sample in the collection returned by read or take.

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Member Data Documentation

final int READ_SAMPLE_STATE = 0x0001 << 0 [static]

Sample has been read.

final int NOT_READ_SAMPLE_STATE = 0x0001 << 1 [static]

Sample has not been read.