com.github.mikephil.charting.data.realm.base

Class RealmBaseDataSet<T extends RealmObject,S extends Entry>

java.lang.Object

com.github.mikephil.charting.data.BaseDataSet<S>

com.github.mikephil.charting.data.realm.base.RealmBaseDataSet<T,S>

All Implemented Interfaces:

IDataSet<S>

Direct Known Subclasses:

RealmBarLineScatterCandleBubbleDataSet, RealmPieDataSet

public abstract class RealmBaseDataSet<T extends RealmObject,S extends Entry>
extends BaseDataSet<S>

Created by Philipp Jahoda on 06/11/15.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String	mIndexField fieldname of the column that contains the x-indices of this dataset
protected java.util.List<S>	mValues a cached list of all data read from the database
protected java.lang.String	mValuesField fieldname of the column that contains the y-values of this dataset
protected float	mYMax maximum y-value in the y-value array
protected float	mYMin the minimum y-value in the y-value array
protected <any>	results a list of queried realm objects

Fields inherited from class com.github.mikephil.charting.data.BaseDataSet

mAxisDependency, mColors, mDrawValues, mHighlightEnabled, mValueColors, mValueFormatter, mValueTextSize, mValueTypeface, mVisible

Constructor Summary

Constructors

Constructor and Description
RealmBaseDataSet(<any> results, java.lang.String yValuesField)
RealmBaseDataSet(<any> results, java.lang.String yValuesField, java.lang.String xIndexField) Constructor that takes the realm RealmResults, sorts & stores them.

Method Summary

Modifier and Type	Method and Description
boolean	addEntry(S e) Adds an Entry to the DataSet dynamically.
void	addEntryOrdered(S e) Adds an Entry to the DataSet dynamically.
void	build(<any> results) Rebuilds the DataSet based on the given RealmResults.
S	buildEntryFromResultObject(T realmObject, int xIndex)
void	calcMinMax(int start, int end) Calculates the minimum and maximum y value (mYMin, mYMax).
void	clear() Removes all values from this DataSet and does all necessary recalculations.
java.util.List<S>	getEntriesForXIndex(int xIndex) Returns all Entry objects found at the given xIndex with binary search.
int	getEntryCount() Returns the number of y-values this DataSet represents -> the size of the y-values array -> yvals.size()
S	getEntryForIndex(int index) Returns the Entry object found at the given index (NOT xIndex) in the values array.
S	getEntryForXIndex(int xIndex) Returns the first Entry object found at the given xIndex with binary search.
S	getEntryForXIndex(int xIndex, DataSet.Rounding rounding) Returns the first Entry object found at the given xIndex with binary search.
int	getEntryIndex(int x, DataSet.Rounding rounding) Returns the first Entry index found at the given xIndex with binary search.
int	getEntryIndex(S e) Returns the position of the provided entry in the DataSets Entry array.
java.lang.String	getIndexField() Returns the fieldname that represents the "x-index" in the realm-data.
<any>	getResults()
java.util.List<S>	getValues() Returns the List of values that has been extracted from the RealmResults using the provided fieldnames.
java.lang.String	getValuesField() Returns the fieldname that represents the "y-values" in the realm-data.
float	getYMax() returns the maximum y-value this DataSet holds
float	getYMin() returns the minimum y-value this DataSet holds
float	getYValForXIndex(int xIndex) Returns the value of the Entry object at the given xIndex.
float[]	getYValsForXIndex(int xIndex) Returns all of the y values of the Entry objects at the given xIndex.
boolean	removeEntry(S e) Removes an Entry from the DataSets entries array.
void	setIndexField(java.lang.String xIndexField) Sets the field name that is used for getting the x-indices out of the RealmResultSet.
void	setValuesField(java.lang.String yValuesField) Sets the field name that is used for getting the y-values out of the RealmResultSet.

Methods inherited from class com.github.mikephil.charting.data.BaseDataSet

addColor, contains, getAxisDependency, getColor, getColor, getColors, getIndexInEntries, getLabel, getValueColors, getValueFormatter, getValueTextColor, getValueTextColor, getValueTextSize, getValueTypeface, isDrawValuesEnabled, isHighlightEnabled, isVisible, notifyDataSetChanged, removeEntry, removeFirst, removeLast, resetColors, setAxisDependency, setColor, setColor, setColors, setColors, setColors, setColors, setDrawValues, setHighlightEnabled, setLabel, setValueFormatter, setValueTextColor, setValueTextColors, setValueTextSize, setValueTypeface, setVisible

Methods inherited from class java.lang.Object

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

Field Detail

results

protected <any> results

a list of queried realm objects

mValues

protected java.util.List<S extends Entry> mValues

a cached list of all data read from the database

mYMax

protected float mYMax

maximum y-value in the y-value array

mYMin

protected float mYMin

the minimum y-value in the y-value array

mValuesField

protected java.lang.String mValuesField

fieldname of the column that contains the y-values of this dataset

mIndexField

protected java.lang.String mIndexField

fieldname of the column that contains the x-indices of this dataset

Constructor Detail

RealmBaseDataSet

public RealmBaseDataSet(<any> results,
                        java.lang.String yValuesField)

RealmBaseDataSet

public RealmBaseDataSet(<any> results,
                        java.lang.String yValuesField,
                        java.lang.String xIndexField)

Constructor that takes the realm RealmResults, sorts & stores them.

Parameters:

results -

yValuesField -

xIndexField -

Method Detail

build

public void build(<any> results)

Rebuilds the DataSet based on the given RealmResults.

buildEntryFromResultObject

public S buildEntryFromResultObject(T realmObject,
                                    int xIndex)

getYMin

public float getYMin()

Description copied from interface: IDataSet

returns the minimum y-value this DataSet holds

Returns:

getYMax

public float getYMax()

Description copied from interface: IDataSet

returns the maximum y-value this DataSet holds

Returns:

getEntryCount

public int getEntryCount()

Description copied from interface: IDataSet

Returns the number of y-values this DataSet represents -> the size of the y-values array -> yvals.size()

Returns:

calcMinMax

public void calcMinMax(int start,
                       int end)

Description copied from interface: IDataSet

Calculates the minimum and maximum y value (mYMin, mYMax). From the specified starting to ending index.

Parameters:

start - starting index in your data list

end - ending index in your data list

getEntryForXIndex

public S getEntryForXIndex(int xIndex)

Description copied from interface: IDataSet

Returns the first Entry object found at the given xIndex with binary search. If the no Entry at the specified x-index is found, this method returns the index at the closest x-index. Returns null if no Entry object at that index. INFORMATION: This method does calculations at runtime. Do not over-use in performance critical situations.

Returns:

getEntryForXIndex

public S getEntryForXIndex(int xIndex,
                           DataSet.Rounding rounding)

Description copied from interface: IDataSet

Returns the first Entry object found at the given xIndex with binary search. If the no Entry at the specified x-index is found, this method returns the index at the closest x-index. Returns null if no Entry object at that index. INFORMATION: This method does calculations at runtime. Do not over-use in performance critical situations.

rounding - determine to round up/down/closest if there is no Entry matching the provided x-index

Returns:

getEntriesForXIndex

public java.util.List<S> getEntriesForXIndex(int xIndex)

Description copied from interface: IDataSet

Returns all Entry objects found at the given xIndex with binary search. An empty array if no Entry object at that index. INFORMATION: This method does calculations at runtime. Do not over-use in performance critical situations.

Returns:

getEntryForIndex

public S getEntryForIndex(int index)

Description copied from interface: IDataSet

Returns the Entry object found at the given index (NOT xIndex) in the values array.

Returns:

getEntryIndex

public int getEntryIndex(int x,
                         DataSet.Rounding rounding)

Description copied from interface: IDataSet

Returns the first Entry index found at the given xIndex with binary search. If the no Entry at the specified x-index is found, this method returns the index at the closest x-index. Returns -1 if no Entry object at that index. INFORMATION: This method does calculations at runtime. Do not over-use in performance critical situations.

rounding - determine to round up/down/closest if there is no Entry matching the provided x-index

Returns:

getEntryIndex

public int getEntryIndex(S e)

Description copied from interface: IDataSet

Returns the position of the provided entry in the DataSets Entry array. Returns -1 if doesn't exist.

Returns:

getYValForXIndex

public float getYValForXIndex(int xIndex)

Description copied from interface: IDataSet

Returns the value of the Entry object at the given xIndex. Returns Float.NaN if no value is at the given x-index. INFORMATION: This method does calculations at runtime. Do not over-use in performance critical situations.

Returns:

getYValsForXIndex

public float[] getYValsForXIndex(int xIndex)

Description copied from interface: IDataSet

Returns all of the y values of the Entry objects at the given xIndex. Returns Float.NaN if no value is at the given x-index. INFORMATION: This method does calculations at runtime. Do not over-use in performance critical situations.

Returns:

addEntry

public boolean addEntry(S e)

Description copied from interface: IDataSet

Adds an Entry to the DataSet dynamically. Entries are added to the end of the list. This will also recalculate the current minimum and maximum values of the DataSet and the value-sum.

removeEntry

public boolean removeEntry(S e)

Description copied from interface: IDataSet

Removes an Entry from the DataSets entries array. This will also recalculate the current minimum and maximum values of the DataSet and the value-sum. Returns true if an Entry was removed, false if no Entry could be removed.

addEntryOrdered

public void addEntryOrdered(S e)

Description copied from interface: IDataSet

Adds an Entry to the DataSet dynamically. Entries are added to their appropriate index respective to it's x-index. This will also recalculate the current minimum and maximum values of the DataSet and the value-sum.

getValues

public java.util.List<S> getValues()

Returns the List of values that has been extracted from the RealmResults using the provided fieldnames.

Returns:

clear

public void clear()

Description copied from interface: IDataSet

Removes all values from this DataSet and does all necessary recalculations.

getResults

public <any> getResults()

getValuesField

public java.lang.String getValuesField()

Returns the fieldname that represents the "y-values" in the realm-data.

Returns:

setValuesField

public void setValuesField(java.lang.String yValuesField)

Sets the field name that is used for getting the y-values out of the RealmResultSet.

Parameters:

yValuesField -

getIndexField

public java.lang.String getIndexField()

Returns the fieldname that represents the "x-index" in the realm-data.

Returns:

setIndexField

public void setIndexField(java.lang.String xIndexField)

Sets the field name that is used for getting the x-indices out of the RealmResultSet.

Parameters:

xIndexField -