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CharArray.java
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CharArray.java
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/*
* Copyright (c) 2002-2017 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.values;
import java.util.Arrays;
import static java.lang.String.format;
abstract class CharArray extends TextArray
{
abstract char[] value();
@Override
public boolean equals( Object other )
{
return other != null && other instanceof Value && equals( (Value) other );
}
@Override
public boolean equals( Value other )
{
return other.equals( value() );
}
// TODO: should we support this?
// @Override
// boolean equals( String x )
// {
// return false;
// }
@Override
public boolean equals( char[] x )
{
return Arrays.equals( value(), x );
}
@Override
public boolean equals( String[] x )
{
return PrimitiveArrayValues.equals( value(), x );
}
@Override
public int hashCode()
{
return TextValues.hash( value() );
}
@Override
public int length()
{
return value().length;
}
@Override
public String stringValue( int offset )
{
return Character.toString( value()[offset] );
}
@Override
public <E extends Exception> void writeTo( ValueWriter<E> writer ) throws E
{
PrimitiveArrayWriting.writeTo( writer, value() );
}
@Override
public Object asObjectCopy()
{
return value().clone();
}
@Override
@Deprecated
public Object asObject()
{
return value();
}
@Override
public String prettyPrint()
{
return Arrays.toString( value() );
}
static final class Direct extends CharArray
{
final char[] value;
Direct( char[] value )
{
assert value != null;
this.value = value;
}
@Override
char[] value()
{
return value;
}
@Override
public String toString()
{
return format( "CharArray%s", Arrays.toString( value() ) );
}
}
static final class Lazy extends CharArray implements LazyValue<char[]>
{
private volatile Object field;
Lazy( ValueLoader<char[]> producer )
{
this.field = producer;
}
@Override
char[] value()
{
return LazyValues.getOrLoad( this );
}
@Override
public void registerValue( char[] value )
{
this.field = value;
}
@Override
public Object getMaybeValue()
{
return field;
}
@Override
public String toString()
{
return format( "CharArray%s",
LazyValues.valueIsLoaded( field ) ? Arrays.toString( value() ) : "?" );
}
}
}