本文整理了Java中org.neo4j.string.UTF8类的一些代码示例，展示了UTF8类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。UTF8类的具体详情如下：
包路径：org.neo4j.string.UTF8
类名称：UTF8

UTF8介绍

[英]Utilities for working with UTF8 encoding and decoding.
[中]使用UTF8编码和解码的实用程序。

代码示例

代码示例来源：origin: neo4j/neo4j

@Override
public int length( Object value )
{
  return Integer.BYTES + UTF8.encode( (String)value ).length * Character.BYTES; // pessimistic
}

代码示例来源：origin: neo4j/neo4j

public static String decodeString( byte[] byteArray )
{
  return UTF8.decode( byteArray );
}

代码示例来源：origin: neo4j/neo4j

public static String getDecodedStringFrom( ByteBuffer source )
{
  // Currently only one key is supported although the data format supports multiple
  int count = source.getInt();
  int remaining = source.remaining();
  if ( count > remaining )
  {
    throw badStringFormatException( count, remaining );
  }
  byte[] data = new byte[count];
  source.get( data );
  return UTF8.decode( data );
}

代码示例来源：origin: neo4j/neo4j

/**
 * Compute the byte size needed to serialize the provided IndexRule using serialize.
 * @param indexDescriptor the StoreIndexDescriptor
 * @return the byte size of StoreIndexDescriptor
 */
static int lengthOf( StoreIndexDescriptor indexDescriptor )
{
  int length = 4; // legacy label or relType id
  length += 1;    // schema rule type
  IndexProviderDescriptor providerDescriptor = indexDescriptor.providerDescriptor();
  length += UTF8.computeRequiredByteBufferSize( providerDescriptor.getKey() );
  length += UTF8.computeRequiredByteBufferSize( providerDescriptor.getVersion() );
  length += 1; // index type
  if ( indexDescriptor.type() == IndexDescriptor.Type.UNIQUE )
  {
    length += 8; // owning constraint id
  }
  length += indexDescriptor.schema().computeWith( schemaSizeComputer );
  length += UTF8.computeRequiredByteBufferSize( indexDescriptor.getName() );
  return length;
}

代码示例来源：origin: neo4j/neo4j

/**
 * Compute the byte size needed to serialize the provided ConstraintRule using serialize.
 * @param constraintRule the ConstraintRule
 * @return the byte size of ConstraintRule
 */
static int lengthOf( ConstraintRule constraintRule )
{
  int length = 4; // legacy label or relType id
  length += 1; // schema rule type
  length += 1; // constraint type
  ConstraintDescriptor constraintDescriptor = constraintRule.getConstraintDescriptor();
  if ( constraintDescriptor.enforcesUniqueness() )
  {
    length += 8; // owned index id
  }
  length += constraintDescriptor.schema().computeWith( schemaSizeComputer );
  length += UTF8.computeRequiredByteBufferSize( constraintRule.getName() );
  return length;
}

代码示例来源：origin: neo4j/neo4j

@Override
public void writeString( String value )
{
  bytes = UTF8.encode( value );
  bytesLength = bytes.length;
  bytesDereferenced = false;
}

代码示例来源：origin: neo4j/neo4j

static String asValueRaw( byte[] byteArray, long long0 )
{
  return byteArray == null ? null : UTF8.decode( byteArray, 0, (int) long0 );
}

代码示例来源：origin: org.neo4j/neo4j-common

public static String getDecodedStringFrom( ByteBuffer source )
{
  // Currently only one key is supported although the data format supports multiple
  int count = source.getInt();
  int remaining = source.remaining();
  if ( count > remaining )
  {
    throw badStringFormatException( count, remaining );
  }
  byte[] data = new byte[count];
  source.get( data );
  return UTF8.decode( data );
}

代码示例来源：origin: org.neo4j/neo4j-kernel

/**
 * Compute the byte size needed to serialize the provided IndexRule using serialize.
 * @param indexDescriptor the StoreIndexDescriptor
 * @return the byte size of StoreIndexDescriptor
 */
static int lengthOf( StoreIndexDescriptor indexDescriptor )
{
  int length = 4; // legacy label or relType id
  length += 1;    // schema rule type
  IndexProviderDescriptor providerDescriptor = indexDescriptor.providerDescriptor();
  length += UTF8.computeRequiredByteBufferSize( providerDescriptor.getKey() );
  length += UTF8.computeRequiredByteBufferSize( providerDescriptor.getVersion() );
  length += 1; // index type
  if ( indexDescriptor.type() == IndexDescriptor.Type.UNIQUE )
  {
    length += 8; // owning constraint id
  }
  length += indexDescriptor.schema().computeWith( schemaSizeComputer );
  length += UTF8.computeRequiredByteBufferSize( indexDescriptor.getName() );
  return length;
}

代码示例来源：origin: neo4j/neo4j

public static int computeRequiredByteBufferSize( String text )
{
  return encode( text ).length + 4;
}

代码示例来源：origin: neo4j/neo4j

public static String readString( ReadableChannel channel, int length ) throws IOException
{
  assert length >= 0 : "invalid array length " + length;
  byte[] chars = new byte[length];
  channel.get( chars, length );
  return UTF8.decode( chars );
}

代码示例来源：origin: org.neo4j/neo4j-kernel

/**
 * Compute the byte size needed to serialize the provided ConstraintRule using serialize.
 * @param constraintRule the ConstraintRule
 * @return the byte size of ConstraintRule
 */
static int lengthOf( ConstraintRule constraintRule )
{
  int length = 4; // legacy label or relType id
  length += 1; // schema rule type
  length += 1; // constraint type
  ConstraintDescriptor constraintDescriptor = constraintRule.getConstraintDescriptor();
  if ( constraintDescriptor.enforcesUniqueness() )
  {
    length += 8; // owned index id
  }
  length += constraintDescriptor.schema().computeWith( schemaSizeComputer );
  length += UTF8.computeRequiredByteBufferSize( constraintRule.getName() );
  return length;
}

代码示例来源：origin: neo4j/neo4j

Input( String data )
{
  bytes = UTF8.encode( data );
}

代码示例来源：origin: neo4j/neo4j

public List<S> deserializeRecords( byte[] bytes ) throws FormatException
{
  return deserializeRecords( Arrays.asList( UTF8.decode( bytes ).split( "\n" ) ) );
}

代码示例来源：origin: neo4j/neo4j

public static byte[] encodeString( String string )
{
  return UTF8.encode( string );
}

代码示例来源：origin: neo4j/neo4j

private TextValue string( RecordPropertyCursor cursor, long reference, PageCursor page )
{
  ByteBuffer buffer = cursor.buffer = read.loadString( reference, cursor.buffer, page );
  buffer.flip();
  return Values.stringValue( UTF8.decode( buffer.array(), 0, buffer.limit() ) );
}

代码示例来源：origin: neo4j/neo4j

public static void putEncodedStringInto( String text, ByteBuffer target )
{
  byte[] data = encode( text );
  target.putInt( data.length );
  target.put( data );
}

代码示例来源：origin: neo4j/neo4j

private static String entityAsString( Response response )
{
  byte[] bytes = (byte[]) response.getEntity();
  return UTF8.decode( bytes );
}

代码示例来源：origin: neo4j/neo4j

@Override
public void writeString( String value )
{
  builder.append( base64Encoder.encodeToString( UTF8.encode( value ) ) );
  builder.append( '|' );
}

代码示例来源：origin: neo4j/neo4j

private String decode( final Response response )
{
  return UTF8.decode( (byte[]) response.getEntity() );
}