org.pepstock.charba.client.callbacks

Class ChartContext

java.lang.Object

org.pepstock.charba.client.commons.NativeObjectContainer

org.pepstock.charba.client.callbacks.ChartContext

Direct Known Subclasses:

AbstractDatasetContext, AnnotationContext, MeterContext, ScaleContext, SegmentContext, TooltipContext, ZoomContext

public class ChartContext
extends NativeObjectContainer

Abstract implementation to map the context used as argument on options, data sets, scales and plugins callbacks.
All context implementations have got a property which is a reference to the chart instance.

Author:

Andrea "Stock" Stocchero

Constructor Summary

Constructors

Constructor and Description
ChartContext(NativeObject nativeObject) Creates the object with native object instance to be wrapped.

Method Summary

Modifier and Type	Method and Description
protected boolean	checkIfPropertyIsValid(Key property) Checks if the key passed as argument is a key already used for other context properties.
boolean	getAttribute(Key key, boolean defaultValue) Returns a custom field value from data point.
double	getAttribute(Key key, double defaultValue) Returns a custom field value from data point.
int	getAttribute(Key key, int defaultValue) Returns a custom field value from data point.
String	getAttribute(Key key, String defaultValue) Returns a custom field value from data point.
<T extends NativeObjectContainer> T	getAttributes(NativeObjectContainerFactory<T> factory) Returns the attributes, if exist.
IsChart	getChart() Returns the CHARBA chart instance.
ContextType	getType() Returns the type of the context.
boolean	hasAttributes() Checks if there is any attribute node.
protected boolean	isConsistent() Returns true if the context is consistent. Custom context (the plugin ones) should extend it and check if the context is consistent before invoking the callback.
void	setAttribute(Key key, boolean value) Sets a custom field to data point.
void	setAttribute(Key key, double value) Sets a custom field to data point.
void	setAttribute(Key key, int value) Sets a custom field to data point.
void	setAttribute(Key key, String value) Sets a custom field to data point.
<T extends NativeObjectContainer> void	setAttributes(T attributes) Sets the additional attributes.

Methods inherited from class org.pepstock.charba.client.commons.NativeObjectContainer

checkDefaultValuesArgument, empty, getArrayValue, getElement, getIncrementalId, getNativeChart, getNativeEvent, getNativeObject, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValueForMultipleKeyTypes, getValueForMultipleKeyTypes, getValueForMultipleKeyTypes, getValueOrArray, getValueOrArray, getValueOrArray, getValueOrArray, getValueOrArray, getValueOrArray, getValueOrArray, getValueOrArray, has, has, isType, keys, loadNativeObject, remove, remove, setArrayValue, setArrayValue, setArrayValue, setElement, setEmptyValue, setNewIncrementalId, setNewIncrementalId, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, toJSON, type

Methods inherited from class java.lang.Object

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

Constructor Detail

ChartContext

public ChartContext(NativeObject nativeObject)

Creates the object with native object instance to be wrapped.

Parameters:

nativeObject - native object instance to be wrapped.

Method Detail

getChart

public final IsChart getChart()

Returns the CHARBA chart instance.

Returns:

the CHARBA chart instance

getType

public final ContextType getType()

Returns the type of the context.

Returns:

the type of the context

setAttributes

public final <T extends NativeObjectContainer> void setAttributes(T attributes)

Sets the additional attributes.

Type Parameters:

T - type of native object container to store

Parameters:

attributes - additional attributes instance.

hasAttributes

public final boolean hasAttributes()

Checks if there is any attribute node.

Returns:

true if there is an attributes node, otherwise false.

getAttributes

public final <T extends NativeObjectContainer> T getAttributes(NativeObjectContainerFactory<T> factory)

Returns the attributes, if exist. It uses a factory instance to create a native object container.

Type Parameters:

T - type of native object container to return

Parameters:

factory - factory instance to create a native object container.

Returns:

java script object used to map the attributes or an empty object if not exist.

setAttribute

public final void setAttribute(Key key,
                               double value)

Sets a custom field to data point.

Parameters:

key - key of java script object to set.

value - value to set.

getAttribute

public final double getAttribute(Key key,
                                 double defaultValue)

Returns a custom field value from data point.

Parameters:

key - key of java script object to get.

defaultValue - default value if the property is missing

Returns:

custom field value from data point.

setAttribute

public final void setAttribute(Key key,
                               boolean value)

Sets a custom field to data point.

Parameters:

key - key of java script object to set.

value - value to set.

getAttribute

public final boolean getAttribute(Key key,
                                  boolean defaultValue)

Returns a custom field value from data point.

Parameters:

key - key of java script object to get.

defaultValue - default value if the property is missing

Returns:

custom field value from data point.

setAttribute

public final void setAttribute(Key key,
                               int value)

Sets a custom field to data point.

Parameters:

key - key of java script object to set.

value - value to set.

getAttribute

public final int getAttribute(Key key,
                              int defaultValue)

Returns a custom field value from data point.

Parameters:

key - key of java script object to get.

defaultValue - default value if the property is missing

Returns:

custom field value from data point.

setAttribute

public final void setAttribute(Key key,
                               String value)

Sets a custom field to data point.

Parameters:

key - key of java script object to set.

value - value to set.

getAttribute

public final String getAttribute(Key key,
                                 String defaultValue)

Returns a custom field value from data point.

Parameters:

key - key of java script object to get.

defaultValue - default value if the property is missing

Returns:

custom field value from data point.

isConsistent

protected boolean isConsistent()

Returns true if the context is consistent.
Custom context (the plugin ones) should extend it and check if the context is consistent before invoking the callback.

Returns:

true if the context is consistent

checkIfPropertyIsValid

protected boolean checkIfPropertyIsValid(Key property)

Checks if the key passed as argument is a key already used for other context properties.

Parameters:

property - property to use to store a custom attribute

Returns:

true if the property can be used to store an attribute.