Package com.arcadedb.query.sql.method.misc

Class SQLMethodHash

java.lang.Object

com.arcadedb.query.sql.method.AbstractSQLMethod

com.arcadedb.query.sql.method.misc.SQLMethodHash

All Implemented Interfaces:

SQLMethod, Comparable<SQLMethod>

public class SQLMethodHash
extends AbstractSQLMethod

Hash a string supporting multiple algorithm, all those supported by JVM

Author:

Luca Garulli (l.garulli--(at)--gmail.com)

Field Summary

Fields

Modifier and Type	Field	Description
static String	HASH_ALGORITHM
static String	NAME

Constructor Summary

Constructors

Constructor	Description
SQLMethodHash()

Method Summary

Modifier and Type	Method	Description
static String	byteArrayToHexStr(byte[] data)
static String	createHash(String iInput, String algorithm)
Object	execute(Object value, Identifiable iCurrentRecord, CommandContext iContext, Object[] iParams)	Process a record.
String	getSyntax()	Returns a convenient SQL String representation of the method.

Methods inherited from class com.arcadedb.query.sql.method.AbstractSQLMethod

compareTo, evaluateParameters, getName, getParameterValue, toString

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

HASH_ALGORITHM

public static final String HASH_ALGORITHM

See Also:

Constant Field Values

Constructor Detail

SQLMethodHash

public SQLMethodHash()

Method Detail

getSyntax

public String getSyntax()

Description copied from interface: SQLMethod

Returns a convenient SQL String representation of the method.

Example :

  field.myMethod( param1, param2, [optionalParam3])
 

This text will be used in exception messages.

Specified by:

getSyntax in interface SQLMethod

Overrides:

getSyntax in class AbstractSQLMethod

Returns:

String , never null.

execute

public Object execute(Object value,
                      Identifiable iCurrentRecord,
                      CommandContext iContext,
                      Object[] iParams)

Description copied from interface: SQLMethod

Process a record.

Parameters:

value - current object

iCurrentRecord - : current record

iContext - execution context

iParams - : function parameters, number is ensured to be within minParams and maxParams.

Returns:

evaluation result

createHash

public static String createHash(String iInput,
                                String algorithm)
                         throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

byteArrayToHexStr

public static String byteArrayToHexStr(byte[] data)