com.adobe.xfa

Class SchemaStrings

java.lang.Object

com.adobe.xfa.SchemaStrings

public class SchemaStrings
extends Object

This class is used to correlate schema strings to their eTag (int) values. The lookup mechanism is unique in that we want to avoid string comparisons at all costs. Lookups are based on the fact that all Strings are interned and we match by string identity.
The lookup algorithm is a simple fixed-size hash table. The table size is always a power of 2, which is typically not ideal for linear probing, but using a prime number (and the associated modulus operation) would make the lookup significantly more expensive.

Constructor Summary

Constructors

Constructor and Description
SchemaStrings(int size) Constructor that allocates our internal data structures to the specified size.

Method Summary

Modifier and Type	Method and Description
int	getInt(String sStr) Find the tag integer matching this schema string
void	put(String sStr, int eTag) This method populates the data structures.

Methods inherited from class java.lang.Object

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

Constructor Detail

SchemaStrings

public SchemaStrings(int size)

Constructor that allocates our internal data structures to the specified size.

Parameters:

size - - the size of our internal arrays. (They can't grow!)

Method Detail

put

public void put(String sStr,
                int eTag)

This method populates the data structures. It assumes that the array does not need to be resized.

Parameters:

sStr - the String to add.

eTag - the corresponding eTag

getInt

public int getInt(String sStr)

Find the tag integer matching this schema string

Parameters:

sStr - the schema string to look up.

Returns:

the corresponding tag. -1 if not found.