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First structure for virtual values + ListValue and MapValue
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61 changes: 61 additions & 0 deletions
61
community/values/src/main/java/org/neo4j/values/AnyValueWriter.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; | ||
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/** | ||
* Writer of any values. | ||
*/ | ||
public interface AnyValueWriter extends ValueWriter | ||
{ | ||
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void beginNode( long nodeId ); | ||
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void endNode(); | ||
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void beginLabels( int numberOfLabels ); | ||
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void writeLabel( int labelId ); | ||
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void endLabels(); | ||
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void beginProperties( int numberOfProperties ); | ||
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void writePropertyKeyId( int propertyKeyId ); | ||
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void endProperties(); | ||
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void beginEdge( long edgeId ); | ||
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void endEdge(); | ||
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void beginMap( int size ); | ||
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void writeKeyId( int keyId ); | ||
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void endMap(); | ||
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void beginList( int size ); | ||
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void endList(); | ||
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void beginPath( int length ); | ||
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void endPath(); | ||
} |
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55 changes: 55 additions & 0 deletions
55
community/values/src/main/java/org/neo4j/values/virtual/ArrayHelpers.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.virtual; | ||
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import org.neo4j.values.AnyValue; | ||
import org.neo4j.values.Values; | ||
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/** | ||
* This class is way too similar to org.neo4j.collection.primitive.PrimitiveArrays. | ||
* | ||
* Should we introduce dependency on primitive collections? | ||
*/ | ||
class ArrayHelpers | ||
{ | ||
static boolean isSortedSet( int[] keys ) | ||
{ | ||
for ( int i = 0; i < keys.length - 1; i++ ) | ||
{ | ||
if ( keys[i] >= keys[i + 1] ) | ||
{ | ||
return false; | ||
} | ||
} | ||
return true; | ||
} | ||
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static boolean hasNullOrNoValue( AnyValue[] values ) | ||
{ | ||
for ( AnyValue value : values ) | ||
{ | ||
if ( value == null || value == Values.NO_VALUE ) | ||
{ | ||
return true; | ||
} | ||
} | ||
return false; | ||
} | ||
} |
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