com.ergotech.vib.valueobjects

Class TwoDimensionalValueObject

java.lang.Object

com.ergotech.vib.valueobjects.ValueObject

com.ergotech.vib.valueobjects.TwoDimensionalValueObject

All Implemented Interfaces:

ValueObjectInterface, java.lang.Cloneable

public class TwoDimensionalValueObject
extends ValueObject

This is a object that can hold a two dimensional array of ValueObjects. This makes it convenient to store values from a database table. The data is stored in column format with each column being represented by a vector. There are n of these where n is the number of rows. All these are stored in a single vector "values". That is, the size of the Vector is the number of rows of the data. That is, the organization is: Vector 'Values' (size()== number of columns) VectorColumn0 [Row0Value, Row1Value, ...] (size() = number of rows) VectorColumn1 [Row0Value, Row1Value, ...] VectorColumn2 [Row0Value, Row1Value, ...] .. getColumnCount() returns values.size() getRowCount() returns values.elementAt(0)).size() The data is square, that is, no column values are missing, no rows are short.

Field Summary

Fields

Modifier and Type	Field and Description
static char	SLIM_FORMAT_TYPE
static java.lang.String	TIME_COLUMN_NAME Property identifier for the "has time" property.

Fields inherited from class com.ergotech.vib.valueobjects.ValueObject

cvsRev, defaultTTL, locale, valueForTrue

Fields inherited from interface com.ergotech.vib.valueobjects.ValueObjectInterface

ANYTYPE, ARRAYTYPE, BINARYTYPE, BOOLEANTYPE, BYTETYPE, CHARTYPE, DISPLAYVALUE, DOUBLETYPE, FLOATTYPE, INITIALVALUE, INTTYPE, LOG_MESSAGE, LONGTYPE, NAME, OBJECTTYPE, ORDER, PASSWORD_DIGEST, PROPERTYTYPE, QUALITY_BAD, QUALITY_COMM_FAILURE, QUALITY_DEVICE_FAILURE, QUALITY_EGU_EXCEEDED, QUALITY_EVALUATION_EXPIRED, QUALITY_GOOD, QUALITY_IMPOSSIBLE, QUALITY_INITIAL, QUALITY_LAST_USABLE, QUALITY_OUT_OF_SERVICE, QUALITY_PROPERTYONLY, QUALITY_REMOTE_PROXY_INIT, QUALITY_SIMULATED, QUALITY_SOURCE_REMOVED, QUALITY_TRANSITIONAL, QUALITY_UNKNOWN, QUALITY_WARNING, QUALITY_WORST, QUALITY_WRITE_IN_PROGRESS, REQUESTCURRENTVALUE, REQUESTHISTORICAL, SHORTTYPE, STRINGTYPE, TRACE, TWODTYPE, USER_NAME

Constructor Summary

Constructors

Constructor and Description
TwoDimensionalValueObject() This is the generic constructor.
TwoDimensionalValueObject(int columns) This is the generic constructor , it creates an object in the default locale.
TwoDimensionalValueObject(int columns, java.util.Locale locale) This is the generic constructor.
TwoDimensionalValueObject(java.util.Locale locale) This is the generic constructor.
TwoDimensionalValueObject(java.util.Vector<java.util.Vector<ValueObjectInterface>> values, java.util.Locale locale) This is the generic constructor.

Method Summary

Modifier and Type	Method and Description
void	addRow(java.util.Vector<ValueObjectInterface> newValues) This will add a new row.
ValueObjectInterface	copy() Returns a deep copy of the value object.
void	deleteRow(int rowIndex) Deletes the row.
boolean	equals(java.lang.Object obj) Compare the string values
boolean	getBoolValue() Returns the current value represented as a boolean.
byte	getByteValue() Returns the current value represented as an byte.
char	getCharValue() Returns the current value represented as a char.
int	getColumnCount() This will return the number of columns.
java.util.Vector<ValueObjectInterface>	getColumnData(int columnIndex) This is used to get all the data for a specific column.
java.lang.String	getColumnName(int columnIndex) This will return the name of a sepecific column.
java.util.Vector<java.lang.String>	getColumnNames() This will return the vector of names.
double	getDoubleValue() Returns the current value represented as a float.
float	getFloatValue() Returns the current value represented as an float.
int	getIntValue() Returns the current value represented as an integer.
java.util.Locale	getLocale() This method returns the Locale that this object was created in.
long	getLongValue() Returns the current value represented as a long.
double	getNumericValue() Returns the double value, but will throw an exception if the object isn't convertable.
java.lang.Object	getObjectValue() Returns the current value represented as an Object.
java.util.Vector<ValueObjectInterface>	getRow(int rowIndex) This will return a Vector of values for the given row.
int	getRowCount() This will return the number of rows.
short	getShortValue() Returns the current value represented as a short.
java.lang.String	getStringValue() Returns the current value represented as an String.
java.lang.String	getTimeColumnName() Returns the "HAS_TIME" property of the value object.
ValueObjectInterface	getValueAt(int rowIndex, int columnIndex) This will return the value at a specific location.
int	hashCode()
boolean	hasTimeColumn() Return whether the TwoDimensionalValueObject has a time column
boolean	isCellEditable(int rowIndex, int columnIndex) This will return false.
void	setColumn(int columns) This will set the column count to "columns" and reset any data inside the 2d value object.
void	setColumnAt(java.util.Vector<ValueObjectInterface> column, int index) This will replace the column at the give index with the new column.
void	setColumnName(java.lang.String name, int columnIndex) This will set the applicationName of a specific column.
void	setColumnNames(java.util.Vector<java.lang.String> names) This will return the vector of names.
void	setTimeColumnName(java.lang.String timeColumnName) Sets the "HAS_TIME" property of the value object.
void	setValueAt(ValueObjectInterface aValue, int rowIndex, int columnIndex) The new value replaces the existing value at the row and column index provided.
void	sort(int column, boolean descending) Sort the values.
java.lang.String	toJSON(boolean incFormatted, boolean stringDate, java.lang.String dateFormat) Build a json representation of the object, structured: { "type": "object"|"array"|"2d", "value": \, "timestamp": \, {"header": \} }
java.lang.String	toSlimJSON()

Methods inherited from class com.ergotech.vib.valueobjects.ValueObject

acquireLatestPropertiesFrom, acquirePropertiesFrom, attributeNames, compareTo, convertToLowestPrecisionNumber, decrementTTL, escapeJSON, getAlwaysSend, getBinaryValue, getColor, getDate, getLowestPrecisionValueObject, getProperties, getProperty, getQuality, getQualityString, getTime, getTimeMillis, getTTL, getType, getValueObject, getValueObject, getValueObject, getValueObject, getValueObject, getValueObject, getValueObject, getValueObject, getValueObject, getValueObject, getValueObject, replaces, setAlwaysSend, setColor, setDate, setLocale, setProperty, setQuality, setTimeMillis, setTTL, setType, setValueForTrue, shouldTrace, toJSON, toJSON, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

SLIM_FORMAT_TYPE

public static final char SLIM_FORMAT_TYPE

See Also:

Constant Field Values

TIME_COLUMN_NAME

public static final java.lang.String TIME_COLUMN_NAME

Property identifier for the "has time" property.

See Also:

Constant Field Values

Constructor Detail

TwoDimensionalValueObject

public TwoDimensionalValueObject()

This is the generic constructor. This HAS to have setColumn called afterwards or it will throw many null pointer exceptions. This creates an object in the default locale.

TwoDimensionalValueObject

public TwoDimensionalValueObject(int columns)

This is the generic constructor , it creates an object in the default locale.

TwoDimensionalValueObject

public TwoDimensionalValueObject(int columns,
                                 java.util.Locale locale)

This is the generic constructor. This creates the object in the provided locale.

TwoDimensionalValueObject

public TwoDimensionalValueObject(java.util.Locale locale)

This is the generic constructor. This HAS to have setColumn called afterwards or it will throw many null pointer exceptions. This creates an object in the provide locale.

TwoDimensionalValueObject

public TwoDimensionalValueObject(java.util.Vector<java.util.Vector<ValueObjectInterface>> values,
                                 java.util.Locale locale)

This is the generic constructor. This creates the object in the provided locale, setting the columns to the provided values

Method Detail

addRow

public void addRow(java.util.Vector<ValueObjectInterface> newValues)

This will add a new row. This will check to make sure that all the values or of the right classes for their column.

copy

public ValueObjectInterface copy()

Returns a deep copy of the value object.

Returns:

a deep copy of the value object

deleteRow

public void deleteRow(int rowIndex)

Deletes the row.

Parameters:

rowIndex - the row to delete

equals

public boolean equals(java.lang.Object obj)

Description copied from class: ValueObject

Compare the string values

Specified by:

equals in interface ValueObjectInterface

Overrides:

equals in class ValueObject

Returns:

a boolean result of the equals operation

getBoolValue

public boolean getBoolValue()

Returns the current value represented as a boolean.

Returns:

the current value as a boolean

getByteValue

public byte getByteValue()

Returns the current value represented as an byte.

Returns:

the current value as a byte

getCharValue

public char getCharValue()

Returns the current value represented as a char.

Returns:

the current value as a char

getColumnCount

public int getColumnCount()

This will return the number of columns.

getColumnData

public java.util.Vector<ValueObjectInterface> getColumnData(int columnIndex)

This is used to get all the data for a specific column.

getColumnName

public java.lang.String getColumnName(int columnIndex)

This will return the name of a sepecific column.

getColumnNames

public java.util.Vector<java.lang.String> getColumnNames()

This will return the vector of names.

getDoubleValue

public double getDoubleValue()

Returns the current value represented as a float.

Returns:

the current value as a double

See Also:

ValueObjectInterface.getNumericValue()

getFloatValue

public float getFloatValue()

Returns the current value represented as an float.

Returns:

the current value as an float

getIntValue

public int getIntValue()

Returns the current value represented as an integer.

Returns:

the current value as an integer

getLocale

public java.util.Locale getLocale()

This method returns the Locale that this object was created in. It may return null if the object has no interest in Locales.

Specified by:

getLocale in interface ValueObjectInterface

Overrides:

getLocale in class ValueObject

getLongValue

public long getLongValue()

Returns the current value represented as a long.

Returns:

the current value as a long

getNumericValue

public double getNumericValue()
                       throws java.lang.NumberFormatException

Returns the double value, but will throw an exception if the object isn't convertable.

Returns:

the current value as a double

Throws:

java.lang.NumberFormatException

See Also:

ValueObjectInterface.getDoubleValue()

getObjectValue

public java.lang.Object getObjectValue()

Returns the current value represented as an Object.

Returns:

the current value as an Object

getRow

public java.util.Vector<ValueObjectInterface> getRow(int rowIndex)

This will return a Vector of values for the given row.

getRowCount

public int getRowCount()

This will return the number of rows.

getShortValue

public short getShortValue()

Returns the current value represented as a short.

Returns:

the current value as a short

getStringValue

public java.lang.String getStringValue()

Returns the current value represented as an String.

Returns:

the current value as a String

getTimeColumnName

public java.lang.String getTimeColumnName()

Returns the "HAS_TIME" property of the value object. The column name may be null, which indicates that this object does not have a time column.

Returns:

the name of the time column, which may be null

getValueAt

public ValueObjectInterface getValueAt(int rowIndex,
                                       int columnIndex)

This will return the value at a specific location. If there aren't that many rows or columns, it will return null;

Parameters:

rowIndex - zero-based row index.

columnIndex - zero-based column index.

Returns:

the value at the given row,column or null if that location does not exist

hashCode

public int hashCode()

Overrides:

hashCode in class ValueObject

hasTimeColumn

public boolean hasTimeColumn()

Return whether the TwoDimensionalValueObject has a time column

Returns:

isCellEditable

public boolean isCellEditable(int rowIndex,
                              int columnIndex)

This will return false.

setColumn

public void setColumn(int columns)

This will set the column count to "columns" and reset any data inside the 2d value object.

setColumnAt

public void setColumnAt(java.util.Vector<ValueObjectInterface> column,
                        int index)

This will replace the column at the give index with the new column. It is permissible to use this to add a column, but in this case, the column index must be equal to the current column count. That is, the columns must be added sequentially, there cannot be gaps in the column indices. Whether adding or replacing a column, the size of the column Vector must be the same as the number of rows currently in the value object.

Parameters:

column - the new data

index - the index of the column to replace.

setColumnName

public void setColumnName(java.lang.String name,
                          int columnIndex)

This will set the applicationName of a specific column. This can be used in conjunction with setColumnAt to increase the size of the data stored. ColumnIndex must be <= the column count. If columnIndex is == the column count then a new column will be added.

setColumnNames

public void setColumnNames(java.util.Vector<java.lang.String> names)

This will return the vector of names.

setTimeColumnName

public void setTimeColumnName(java.lang.String timeColumnName)

Sets the "HAS_TIME" property of the value object. The column name may be null, which indicates that this object does not have a time column.

Parameters:

timeColumnName - the name of the time column, which may be null

setValueAt

public void setValueAt(ValueObjectInterface aValue,
                       int rowIndex,
                       int columnIndex)

The new value replaces the existing value at the row and column index provided.

Parameters:

aValue - the new value for the given location

rowIndex - the row index for the new value

columnIndex - the column index for the new value

sort

public void sort(int column,
                 boolean descending)

Sort the values. This will rearrange all the rows so that the values in the given column are sorted in the correct order. This is a fairly expensive operation it is much preferable to specify a sort or in, for example, a SQL query, than to sort the value after the query.

Parameters:

column - the column to use for the sort ordering

descending - true if the value should go from high to low

toJSON

public java.lang.String toJSON(boolean incFormatted,
                               boolean stringDate,
                               java.lang.String dateFormat)

Description copied from class: ValueObject

Build a json representation of the object, structured: { "type": "object"|"array"|"2d", "value": \, "timestamp": \, {"header": \} }

Overrides:

toJSON in class ValueObject

Parameters:

incFormatted - true if the string value of this value object is to be provided under the "formattedValue" key

stringDate - if true, the "timestamp" key will be a String of the form "yyyy-MM-dd HH:mm:ss.zzz"

Returns:

A json string

toSlimJSON

public java.lang.String toSlimJSON()