com.endeca.portal.chart

Class ChartUtil

java.lang.Object

com.endeca.portal.chart.ChartUtil

public class ChartUtil
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	HISTOGRAM_ADJUST_BUCKET_NUM
static java.lang.String	HISTOGRAM_GRANULARITY
static java.lang.String	MAX_VALUE
static java.lang.String	MIN_VALUE
static java.lang.String	NO_VALUE
static java.lang.String	ORIGINAL_MAX
static java.lang.String	ORIGINAL_MIN
static java.lang.String	RECORD_COUNT
static java.lang.String	TOTAL

Constructor Summary

Constructors

Constructor and Description
ChartUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static java.lang.String	fetchSourceKey(SemanticView sView, java.lang.String xMetricKey, com.endeca.mdex.eql_parser.types.Query query) Return a source key for statement reference If the xMetricKey is single-assigned, then return the view key.
static java.util.Map<java.lang.String,java.lang.String>	getAdjustRangeAndPrecision(javax.portlet.PortletRequest request, java.lang.String viewkey, java.lang.String attributeKey, int bucketNum) Return adjusted bin number for dynamic binning for histogram chart.
static com.endeca.mdex.eql_parser.types.Statement	getStatementFlattenedXMetric(java.lang.String xMetricKey, SemanticView sView) Returns EQL Statement for selecting a flattened multi-assign attribute: RETURN FLATTENED AS SELECT xMetric AS xMetric FROM viewKey GROUP By Members xMetricKey;
static com.endeca.mdex.eql_parser.types.Statement	getStatementMaxMin(java.lang.String xMetricKey, SemanticView sView, java.lang.String sourceKey) Returns EQL Statement with following query: RETURN MAXMIN AS SELECT MAX(xMetric) AS MAX_xMetric, MIN(xMetric) AS MIN_xMetric FROM viewKey GROUP;

Methods inherited from class java.lang.Object

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

Field Detail

ORIGINAL_MIN

public static final java.lang.String ORIGINAL_MIN

See Also:

Constant Field Values

ORIGINAL_MAX

public static final java.lang.String ORIGINAL_MAX

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Constant Field Values

HISTOGRAM_GRANULARITY

public static final java.lang.String HISTOGRAM_GRANULARITY

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Constant Field Values

HISTOGRAM_ADJUST_BUCKET_NUM

public static final java.lang.String HISTOGRAM_ADJUST_BUCKET_NUM

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Constant Field Values

MAX_VALUE

public static final java.lang.String MAX_VALUE

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Constant Field Values

MIN_VALUE

public static final java.lang.String MIN_VALUE

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Constant Field Values

NO_VALUE

public static final java.lang.String NO_VALUE

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Constant Field Values

TOTAL

public static final java.lang.String TOTAL

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Constant Field Values

RECORD_COUNT

public static final java.lang.String RECORD_COUNT

See Also:

Constant Field Values

Constructor Detail

ChartUtil

public ChartUtil()

Method Detail

getAdjustRangeAndPrecision

public static java.util.Map<java.lang.String,java.lang.String> getAdjustRangeAndPrecision(javax.portlet.PortletRequest request,
                                                                          java.lang.String viewkey,
                                                                          java.lang.String attributeKey,
                                                                          int bucketNum)
                                                                                   throws java.io.IOException,
                                                                                          javax.portlet.PortletException,
                                                                                          java.text.ParseException,
                                                                                          DataSourceException,
                                                                                          ModelException,
                                                                                          KeyNotFoundException

Return adjusted bin number for dynamic binning for histogram chart. The rational behind this is explain in http://share.axure.com/O3UU9Q/ (range) under "Histogram Methodology" tab. This approach is used in available refinement portlet.

Parameters:

request -

viewkey -

attributeKey -

bucketNum - -- this is the initial number of bins available (e.g., (pixels avaiable)/(minimal pixels per bin))

Returns:

Throws:

java.io.IOException

javax.portlet.PortletException

java.text.ParseException

DataSourceException

ModelException

KeyNotFoundException

fetchSourceKey

public static java.lang.String fetchSourceKey(SemanticView sView,
                              java.lang.String xMetricKey,
                              com.endeca.mdex.eql_parser.types.Query query)

Return a source key for statement reference If the xMetricKey is single-assigned, then return the view key. If the xMetricKey is multi-assigned, flatten it in another statement first, and return that statement key. In this scenario, that additional statement will be added into the query implicitly.

Parameters:

sView -

xMetricKey -

query -

Returns:

source key

getStatementMaxMin

public static com.endeca.mdex.eql_parser.types.Statement getStatementMaxMin(java.lang.String xMetricKey,
                                                            SemanticView sView,
                                                            java.lang.String sourceKey)

Returns EQL Statement with following query: RETURN MAXMIN AS SELECT MAX(xMetric) AS MAX_xMetric, MIN(xMetric) AS MIN_xMetric FROM viewKey GROUP;

Parameters:

xMetricKey -

sView -

sourceKey -

Returns:

getStatementFlattenedXMetric

public static com.endeca.mdex.eql_parser.types.Statement getStatementFlattenedXMetric(java.lang.String xMetricKey,
                                                                      SemanticView sView)

Returns EQL Statement for selecting a flattened multi-assign attribute: RETURN FLATTENED AS SELECT xMetric AS xMetric FROM viewKey GROUP By Members xMetricKey;

Parameters:

xMetricKey -

sView -

Returns: