com.amazonaws.auth.policy
Class Condition

java.lang.Object
  com.amazonaws.auth.policy.Condition

Direct Known Subclasses:

ArnCondition, BooleanCondition, DateCondition, IpAddressCondition, NumericCondition, StringCondition

public abstract class Condition
extends Object

AWS access control policy conditions are contained in Statement objects, and affect when a statement is applied. For example, a statement that allows access to an Amazon SQS queue could use a condition to only apply the effect of that statement for requests that are made before a certain date, or that originate from a range of IP addresses.

Multiple conditions can be included in a single statement, and all conditions must evaluate to true in order for the statement to take effect.

The set of conditions is D in the statement "A has permission to do B to C where D applies."

A condition is composed of three parts:

• Condition Key - The condition key declares which value of a request to pull in and compare against when a policy is evaluated by AWS. For example, using ConditionFactory.SOURCE_IP_CONDITION_KEY will cause AWS to pull in the current request's source IP as the first value to compare against every time your policy is evaluated.
• Comparison Type - Most condition types allow several ways to compare the value obtained from the condition key and the comparison value. For example, the NumericCondition.NumericComparisonType enumerates the ways a NumericCondition can be evaluated (less than, greater than, equals, etc).
• Comparison Value - This is a static value used as the second value in the comparison when your policy is evaluated. Depending on the comparison type, this value can optionally use wildcards. See the documentation for individual comparison types for more information.

There are many expressive conditions available in the com.amazonaws.auth.policy.conditions package to use in access control policy statements.

This class is not intended to be directly subclassed by users, instead users should use the many available conditions and condition factories in the com.amazonaws.auth.policy.conditions package.

Constructor Summary

Condition()

Method Summary

String	getConditionKey() Returns the name of the condition key involved in this condition.
String	getType() Returns the type of this condition.
List<String>	getValues() Returns the values specified for this access control policy condition.
void	setConditionKey(String conditionKey) Sets the name of the condition key involved in this condition.
void	setType(String type) Sets the type of this condition.
void	setValues(List<String> values) Sets the values specified for this access control policy condition.
Condition	withConditionKey(String key) Fluent version of setConditionKey(String)
Condition	withType(String type) Fluent version of setType(String)
Condition	withValues(List<String> values) Fluent version of setValues(List)
Condition	withValues(String... values) Fluent version of setValues(List)

Methods inherited from class java.lang.Object

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

Constructor Detail

Condition

public Condition()

Method Detail

getType

public String getType()

Returns the type of this condition.

Returns:

The type of this condition.

setType

public void setType(String type)

Sets the type of this condition.

Parameters:

type - The type of this condition.

getConditionKey

public String getConditionKey()

Returns the name of the condition key involved in this condition. Condition keys are predefined values supported by AWS that provide input to a condition's evaluation, such as the current time, or the IP address of the incoming request.

Your policy is evaluated for each incoming request, and condition keys specify what information to pull out of those incoming requests and plug into the conditions in your policy.

Returns:

The name of the condition key involved in this condition.

setConditionKey

public void setConditionKey(String conditionKey)

Sets the name of the condition key involved in this condition. Condition keys are predefined values supported by AWS that provide input to a condition's evaluation, such as the current time, or the IP address of the incoming request.

Your policy is evaluated for each incoming request, and condition keys specify what information to pull out of those incoming requests and plug into the conditions in your policy.

Parameters:

conditionKey - The name of the condition key involved in this condition.

getValues

public List<String> getValues()

Returns the values specified for this access control policy condition. For example, in a condition that compares the incoming IP address of a request to a specified range of IP addresses, the range of IP addresses is the single value in the condition.

Most conditions accept only one value, but multiple values are possible.

Returns:

The values specified for this access control policy condition.

setValues

public void setValues(List<String> values)

Sets the values specified for this access control policy condition. For example, in a condition that compares the incoming IP address of a request to a specified range of IP addresses, the range of IP addresses is the single value in the condition.

Most conditions accept only one value, but multiple values are possible.

Parameters:

values - The values specified for this access control policy condition.

withType

public Condition withType(String type)

Fluent version of setType(String)

Returns:

this

withConditionKey

public Condition withConditionKey(String key)

Fluent version of setConditionKey(String)

Returns:

this

withValues

public Condition withValues(String... values)

Fluent version of setValues(List)

Returns:

this

withValues

public Condition withValues(List<String> values)

Fluent version of setValues(List)

Returns:

this