Package com.vaadin.flow.internal

Class ConstantPool

java.lang.Object

com.vaadin.flow.internal.ConstantPool

All Implemented Interfaces:

Serializable

public class ConstantPool
extends Object
implements Serializable

Keeps track of ConstantPoolKey values that have already been sent to the client.

For internal use only. May be renamed or removed in a future release.

Since:

1.0

Author:

Vaadin Ltd

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ConstantPool()

Method Summary

Modifier and Type	Method	Description
elemental.json.JsonObject	dumpConstants()	Encodes all new constants to a JSON object and marks those constants as non-new.
String	getConstantId(ConstantPoolKey constant)	Gets the id of a given constant, registering the constant with this constant pool if it hasn't already been encountered.
boolean	hasNewConstants()	Checks if any new constants have been added to this constant pool since the last time dumpConstants() was called.

Methods inherited from class java.lang.Object

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

Constructor Details

ConstantPool

public ConstantPool()

Method Details

getConstantId

public String getConstantId(ConstantPoolKey constant)

Gets the id of a given constant, registering the constant with this constant pool if it hasn't already been encountered.

Parameters:

constant - the constant reference to get an id for, not null

Returns:

the constant id of the given constant, not null

See Also:

• dumpConstants()

hasNewConstants

public boolean hasNewConstants()

Checks if any new constants have been added to this constant pool since the last time dumpConstants() was called.

Returns:

true if there are new constants, false otherwise

dumpConstants

public elemental.json.JsonObject dumpConstants()

Encodes all new constants to a JSON object and marks those constants as non-new.

Returns:

a JSON object describing all new constants