com.inductiveautomation.ignition.client.gateway_interface

Class OptimizedDataSet

java.lang.Object

com.inductiveautomation.ignition.common.AbstractDataset

com.inductiveautomation.ignition.client.gateway_interface.OptimizedDataSet

All Implemented Interfaces:

Dataset, java.io.Serializable

public class OptimizedDataSet
extends AbstractDataset

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.Object[]	columns
protected static org.apache.log4j.Logger	log
protected static XMLReaderPool	xmlReaderPool XML Reader pool used for deserializing xml serialized data

Fields inherited from class com.inductiveautomation.ignition.common.AbstractDataset

_columnNamesLowercase, columnNames, columnTypes, qualityCodes

Constructor Summary

Constructors

Constructor and Description
OptimizedDataSet()
OptimizedDataSet(java.util.List<java.lang.String> columnNames, java.util.List<java.lang.Class<?>> columnTypes, java.lang.Object[] columns) Note: This constructor is used for serialization (see DataSetPersistenceDelegate)
OptimizedDataSet(java.util.List<java.lang.String> columnNames, java.util.List<java.lang.Class<?>> columnTypes, java.lang.Object[] columns, DataQuality[][] quality)

Method Summary

Modifier and Type	Method and Description
int	binarySearch(int column, java.lang.Object searchFor) AbstractDataset provides an inefficient implementation of binary search that allocates a new array list for the entire column.
byte[]	getByteColumn(int col) Returns a primitive column.
java.lang.Object[]	getColumns()
double[]	getDoubleColumn(int col) Returns a primitive column.
float[]	getFloatColumn(int col) Returns a primitive column.
int[]	getIntColumn(int col) Returns a primitive column.
long[]	getLongColumn(int col) Returns a primitive column.
double	getPrimitiveValueAt(int row, int col) If the given column is a numeric type or a Date, then the value will be returned as a double.
int	getRowCount() Return the number of rows in this dataset
short[]	getShortColumn(int col) Returns a primitive column.
java.lang.Object	getValueAt(int row, int col) Returns the value in the dataset at the given location.
void	setFromXML(java.util.List<java.lang.String> columnNames, java.util.List<java.lang.Class<?>> columnTypes, java.lang.String encodedData, int rowCount)
java.lang.String	toString()

Methods inherited from class com.inductiveautomation.ignition.common.AbstractDataset

getAsXML, getBulkQualityCodes, getColumnAsList, getColumnCount, getColumnIndex, getColumnName, getColumnNames, getColumnType, getColumnTypes, getQualityAt, getValueAt, setColumnNames, setColumnTypes, setDirty

Methods inherited from class java.lang.Object

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

Field Detail

xmlReaderPool

protected static XMLReaderPool xmlReaderPool

XML Reader pool used for deserializing xml serialized data

log

protected static org.apache.log4j.Logger log

columns

protected java.lang.Object[] columns

Constructor Detail

OptimizedDataSet

public OptimizedDataSet()

OptimizedDataSet

public OptimizedDataSet(java.util.List<java.lang.String> columnNames,
                        java.util.List<java.lang.Class<?>> columnTypes,
                        java.lang.Object[] columns)

Note: This constructor is used for serialization (see DataSetPersistenceDelegate)

OptimizedDataSet

public OptimizedDataSet(java.util.List<java.lang.String> columnNames,
                        java.util.List<java.lang.Class<?>> columnTypes,
                        java.lang.Object[] columns,
                        DataQuality[][] quality)

Method Detail

setFromXML

public void setFromXML(java.util.List<java.lang.String> columnNames,
                       java.util.List<java.lang.Class<?>> columnTypes,
                       java.lang.String encodedData,
                       int rowCount)

getColumns

public java.lang.Object[] getColumns()

getRowCount

public int getRowCount()

Description copied from interface: Dataset

Return the number of rows in this dataset

getValueAt

public java.lang.Object getValueAt(int row,
                                   int col)

Description copied from interface: Dataset

Returns the value in the dataset at the given location.

getPrimitiveValueAt

public double getPrimitiveValueAt(int row,
                                  int col)

Description copied from class: AbstractDataset

If the given column is a numeric type or a Date, then the value will be returned as a double. The Chart uses this functionality to provide a seamless interface with the optimized dataset.

Specified by:

getPrimitiveValueAt in interface Dataset

Overrides:

getPrimitiveValueAt in class AbstractDataset

binarySearch

public int binarySearch(int column,
                        java.lang.Object searchFor)

Description copied from class: AbstractDataset

AbstractDataset provides an inefficient implementation of binary search that allocates a new array list for the entire column.

Specified by:

binarySearch in interface Dataset

Overrides:

binarySearch in class AbstractDataset

Returns:

index of the search key, if it is contained in the list; otherwise, (-(insertion point) - 1). The insertion point is defined as the point at which the key would be inserted into the list: the index of the first element greater than the key, or list.size(), if all elements in the list are less than the specified key. Note that this guarantees that the return value will be >= 0 if and only if the key is found.

getIntColumn

public int[] getIntColumn(int col)

Returns a primitive column. USE AT YOUR OWN RISK - no checking is performed to ensure data is the correct type.

getDoubleColumn

public double[] getDoubleColumn(int col)

Returns a primitive column. USE AT YOUR OWN RISK - no checking is performed to ensure data is the correct type.

getLongColumn

public long[] getLongColumn(int col)

Returns a primitive column. USE AT YOUR OWN RISK - no checking is performed to ensure data is the correct type.

getFloatColumn

public float[] getFloatColumn(int col)

Returns a primitive column. USE AT YOUR OWN RISK - no checking is performed to ensure data is the correct type.

getByteColumn

public byte[] getByteColumn(int col)

Returns a primitive column. USE AT YOUR OWN RISK - no checking is performed to ensure data is the correct type.

getShortColumn

public short[] getShortColumn(int col)

Returns a primitive column. USE AT YOUR OWN RISK - no checking is performed to ensure data is the correct type.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object