com.vaadin.flow.internal.ConstantPool API 10.0.25 | Vaadin

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com.vaadin.flow.internal.

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.

Since:

1.0

Author:

Vaadin Ltd

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor and Description

ConstantPool()

Method Summary

All Methods
Modifier and Type	Method and 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 Detail
  - ConstantPool
```
public ConstantPool()
```
- Method Detail
  - 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