org.graylog.plugins.pipelineprocessor.ast.expressions

Class FieldRefExpression

java.lang.Object

org.graylog.plugins.pipelineprocessor.ast.expressions.BaseExpression

org.graylog.plugins.pipelineprocessor.ast.expressions.FieldRefExpression

All Implemented Interfaces:

Expression

public class FieldRefExpression
extends BaseExpression

Nested Class Summary

Nested classes/interfaces inherited from interface org.graylog.plugins.pipelineprocessor.ast.expressions.Expression

Expression.Type

Constructor Summary

Constructors

Constructor and Description
FieldRefExpression(org.antlr.v4.runtime.Token start, String variableName, Expression fieldExpr)

Method Summary

Modifier and Type	Method and Description
Iterable<Expression>	children()
Object	evaluateUnsafe(EvaluationContext context) This method is allowed to throw exceptions.
String	fieldName()
Class	getType()
boolean	isConstant()
String	toString()

Methods inherited from class org.graylog.plugins.pipelineprocessor.ast.expressions.BaseExpression

getStartToken

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.graylog.plugins.pipelineprocessor.ast.expressions.Expression

evaluate, evaluateUnsafe, nodeType

Constructor Detail

FieldRefExpression

public FieldRefExpression(org.antlr.v4.runtime.Token start,
                          String variableName,
                          Expression fieldExpr)

Method Detail

isConstant

public boolean isConstant()

evaluateUnsafe

public Object evaluateUnsafe(EvaluationContext context)

Description copied from interface: Expression

This method is allowed to throw exceptions. The outside world is supposed to call evaluate instead.

getType

public Class getType()

toString

public String toString()

Overrides:

toString in class Object

fieldName

public String fieldName()

children

public Iterable<Expression> children()