org.apache.solr.analytics.value.constant

Class ConstantValue

java.lang.Object

org.apache.solr.analytics.value.constant.ConstantValue

All Implemented Interfaces:

AnalyticsValue, AnalyticsValueStream

Direct Known Subclasses:

ConstantBooleanValue, ConstantDateValue, ConstantDoubleValue, ConstantFloatValue, ConstantIntValue, ConstantLongValue, ConstantStringValue

public abstract class ConstantValue
extends Object
implements AnalyticsValue

The parent class of all constant Analytics values.

Constant values can be specified in the following ways in analytics requests:

• Constant booleans must match one of the following in any case: true, t, false, f
• Constant strings must be surrounded with "s or 's
• Constant numbers do not have to be surrounded with anything (floats are currently not supported)
• Constant dates must be formated in the ISO-8601 instant format

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.solr.analytics.value.AnalyticsValue

AnalyticsValue.AbstractAnalyticsValue

Nested classes/interfaces inherited from interface org.apache.solr.analytics.value.AnalyticsValueStream

AnalyticsValueStream.AbstractAnalyticsValueStream, AnalyticsValueStream.ExpressionType

Field Summary

Fields

Modifier and Type	Field and Description
static ExpressionFactory.ConstantFunction	creatorFunction

Constructor Summary

Constructors

Constructor and Description
ConstantValue()

Method Summary

Modifier and Type	Method and Description
AnalyticsValue	convertToConstant() Converts this value to a ConstantValue if it's expression type is AnalyticsValueStream.ExpressionType.CONST.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.solr.analytics.value.AnalyticsValue

exists, getObject

Methods inherited from interface org.apache.solr.analytics.value.AnalyticsValueStream

createExpressionString, determineMappingPhase, getExpressionStr, getExpressionType, getName, streamObjects

Field Detail

creatorFunction

public static final ExpressionFactory.ConstantFunction creatorFunction

Constructor Detail

ConstantValue

public ConstantValue()

Method Detail

convertToConstant

public AnalyticsValue convertToConstant()

Description copied from interface: AnalyticsValueStream

Converts this value to a ConstantValue if it's expression type is AnalyticsValueStream.ExpressionType.CONST. If the value is reduced then no conversion will occur and the value itself will be returned.

Specified by:

convertToConstant in interface AnalyticsValueStream

Returns:

a constant representation of this value