Class InstructionsBuilder
java.lang.Object
org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.table.feature.prop.type.table.feature.prop.type.instructions.InstructionsBuilder
Class that builds
Instructions
instances. Overall design of the class is that of a
fluent interface, where method chaining is used.
In general, this class is supposed to be used like this template:
Instructions createInstructions(int fooXyzzy, int barBaz) {
return new InstructionsBuilder()
.setFoo(new FooBuilder().setXyzzy(fooXyzzy).build())
.setBar(new BarBuilder().setBaz(barBaz).build())
.build();
}
This pattern is supported by the immutable nature of Instructions, as instances can be freely passed around without worrying about synchronization issues.
As a side note: method chaining results in:
- very efficient Java bytecode, as the method invocation result, in this case the Builder reference, is
on the stack, so further method invocations just need to fill method arguments for the next method
invocation, which is terminated by
build()
, which is then returned from the method - better understanding by humans, as the scope of mutable state (the builder) is kept to a minimum and is very localized
- better optimization opportunities, as the object scope is minimized in terms of invocation (rather than method) stack, making escape analysis a lot easier. Given enough compiler (JIT/AOT) prowess, the cost of th builder object can be completely eliminated
- See Also:
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Constructor Summary
ConstructorsConstructorDescriptionConstruct an empty builder.Construct a new builder initialized from specifiedInstructionList
.Construct a builder initialized with state from specifiedInstructions
. -
Method Summary
Modifier and TypeMethodDescriptionaddAugmentation
(org.opendaylight.yangtools.yang.binding.Augmentation<Instructions> augmentation) Add an augmentation to this builder's product.<E$$ extends org.opendaylight.yangtools.yang.binding.Augmentation<Instructions>>
E$$augmentation
(Class<E$$> augmentationType) Return the specified augmentation, if it is present in this builder.@NonNull Instructions
build()
A newInstructions
instance.void
fieldsFrom
(org.opendaylight.yangtools.yang.binding.DataObject arg) Set fields from given grouping argument.Return current value associated with the property corresponding toInstructionList.getInstruction()
.removeAugmentation
(Class<? extends org.opendaylight.yangtools.yang.binding.Augmentation<Instructions>> augmentationType) Remove an augmentation from this builder's product.setInstruction
(Map<InstructionKey, Instruction> values) Set the property corresponding toInstructionList.getInstruction()
to the specified value.
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Constructor Details
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InstructionsBuilder
public InstructionsBuilder()Construct an empty builder. -
InstructionsBuilder
Construct a new builder initialized from specifiedInstructionList
.- Parameters:
arg
- InstructionList from which the builder should be initialized
-
InstructionsBuilder
Construct a builder initialized with state from specifiedInstructions
.- Parameters:
base
- Instructions from which the builder should be initialized
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Method Details
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fieldsFrom
public void fieldsFrom(org.opendaylight.yangtools.yang.binding.DataObject arg) Set fields from given grouping argument. Valid argument is instance of one of following types:- Parameters:
arg
- grouping object- Throws:
IllegalArgumentException
- if given argument is none of valid types or has property with incompatible value
-
getInstruction
Return current value associated with the property corresponding toInstructionList.getInstruction()
.- Returns:
- current value
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augmentation
public <E$$ extends org.opendaylight.yangtools.yang.binding.Augmentation<Instructions>> E$$ augmentation(Class<E$$> augmentationType) Return the specified augmentation, if it is present in this builder.- Type Parameters:
E$$
- augmentation type- Parameters:
augmentationType
- augmentation type class- Returns:
- Augmentation object from this builder, or
null
if not present - Throws:
NullPointerException
- ifaugmentType
isnull
-
setInstruction
Set the property corresponding toInstructionList.getInstruction()
to the specified value.- Parameters:
values
- desired value- Returns:
- this builder
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addAugmentation
public InstructionsBuilder addAugmentation(org.opendaylight.yangtools.yang.binding.Augmentation<Instructions> augmentation) Add an augmentation to this builder's product.- Parameters:
augmentation
- augmentation to be added- Returns:
- this builder
- Throws:
NullPointerException
- ifaugmentation
is null
-
removeAugmentation
public InstructionsBuilder removeAugmentation(Class<? extends org.opendaylight.yangtools.yang.binding.Augmentation<Instructions>> augmentationType) Remove an augmentation from this builder's product. If this builder does not track such an augmentation type, this method does nothing.- Parameters:
augmentationType
- augmentation type to be removed- Returns:
- this builder
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build
A newInstructions
instance.- Returns:
- A new
Instructions
instance.
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