Package graphql.validation.constraints.standard

Class ExpressionConstraint

java.lang.Object

graphql.validation.constraints.AbstractDirectiveConstraint

graphql.validation.constraints.standard.ExpressionConstraint

All Implemented Interfaces:

DirectiveConstraint, ValidationRule

public class ExpressionConstraint
extends AbstractDirectiveConstraint

Constructor Summary

Constructors

Constructor	Description
ExpressionConstraint()

Method Summary

Modifier and Type	Method	Description
boolean	appliesTo(graphql.schema.GraphQLFieldDefinition fieldDefinition, graphql.schema.GraphQLFieldsContainer fieldsContainer)	This is called to work out if this rule applies to a specified field
protected boolean	appliesToListElements()
boolean	appliesToType(graphql.schema.GraphQLInputType inputType)	A derived class will be called to indicate whether this input type applies to the constraint
Documentation	getDocumentation()
protected java.util.List<graphql.GraphQLError>	runConstraint(ValidationEnvironment validationEnvironment)	This is called to perform the constraint validation

Methods inherited from class graphql.validation.constraints.AbstractDirectiveConstraint

appliesTo, asBigDecimal, asBoolean, asMap, getBoolArg, getIntArg, getMessageTemplate, getMessageTemplate, getName, getStrArg, getStringOrIDOrObjectOrMapLength, isMap, isOneOfTheseTypes, isOneOfTheseTypes, isStringOrID, isStringOrIDOrList, isStringOrIDOrListOrMap, mkError, mkError, mkMessageParams, runValidation, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionConstraint

public ExpressionConstraint()

Method Detail

getDocumentation

public Documentation getDocumentation()

Returns:

documentation meta data about this constraint

appliesToType

public boolean appliesToType(graphql.schema.GraphQLInputType inputType)

Description copied from class: AbstractDirectiveConstraint

A derived class will be called to indicate whether this input type applies to the constraint

Specified by:

appliesToType in class AbstractDirectiveConstraint

Parameters:

inputType - the input type

Returns:

true if the constraint can handle that type

appliesTo

public boolean appliesTo(graphql.schema.GraphQLFieldDefinition fieldDefinition,
                         graphql.schema.GraphQLFieldsContainer fieldsContainer)

Description copied from interface: ValidationRule

This is called to work out if this rule applies to a specified field

Specified by:

appliesTo in interface ValidationRule

Overrides:

appliesTo in class AbstractDirectiveConstraint

Parameters:

fieldDefinition - the field to check

fieldsContainer - the field container

Returns:

true if this rule applies to the field

runConstraint

protected java.util.List<graphql.GraphQLError> runConstraint(ValidationEnvironment validationEnvironment)

Description copied from class: AbstractDirectiveConstraint

This is called to perform the constraint validation

Specified by:

runConstraint in class AbstractDirectiveConstraint

Parameters:

validationEnvironment - the validation environment

Returns:

a list of errors or an empty one if there are no errors

appliesToListElements

protected boolean appliesToListElements()

Specified by:

appliesToListElements in class AbstractDirectiveConstraint