org.apache.nifi.attribute.expression.language

Class StandardPreparedQuery

java.lang.Object

org.apache.nifi.attribute.expression.language.StandardPreparedQuery

All Implemented Interfaces:

PreparedQuery

public class StandardPreparedQuery
extends java.lang.Object
implements PreparedQuery

Constructor Summary

Constructors

Constructor and Description
StandardPreparedQuery(java.util.List<java.lang.String> queryStrings, java.util.Map<java.lang.String,CompiledExpression> expressions)

Method Summary

Modifier and Type	Method and Description
java.lang.String	evaluateExpressions(java.util.Map<java.lang.String,java.lang.String> valMap, AttributeValueDecorator decorator)
java.lang.String	evaluateExpressions(java.util.Map<java.lang.String,java.lang.String> valMap, AttributeValueDecorator decorator, java.util.Map<java.lang.String,java.lang.String> stateVariables)
VariableImpact	getVariableImpact() Returns a VariableImpact that can be used to determine whether or not a given variable impacts this Expression.
boolean	isExpressionLanguagePresent()

Methods inherited from class java.lang.Object

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

Constructor Detail

StandardPreparedQuery

public StandardPreparedQuery(java.util.List<java.lang.String> queryStrings,
                             java.util.Map<java.lang.String,CompiledExpression> expressions)

Method Detail

evaluateExpressions

public java.lang.String evaluateExpressions(java.util.Map<java.lang.String,java.lang.String> valMap,
                                            AttributeValueDecorator decorator,
                                            java.util.Map<java.lang.String,java.lang.String> stateVariables)
                                     throws ProcessException

Specified by:

evaluateExpressions in interface PreparedQuery

Throws:

ProcessException

evaluateExpressions

public java.lang.String evaluateExpressions(java.util.Map<java.lang.String,java.lang.String> valMap,
                                            AttributeValueDecorator decorator)
                                     throws ProcessException

Specified by:

evaluateExpressions in interface PreparedQuery

Throws:

ProcessException

isExpressionLanguagePresent

public boolean isExpressionLanguagePresent()

Specified by:

isExpressionLanguagePresent in interface PreparedQuery

getVariableImpact

public VariableImpact getVariableImpact()

Description copied from interface: PreparedQuery

Returns a VariableImpact that can be used to determine whether or not a given variable impacts this Expression.

Specified by:

getVariableImpact in interface PreparedQuery

Returns:

a VariableImpact that can be used to determine whether or not a given variable impacts this Expression.