Package org.elasticsearch.common.bytes

Class ReleasableBytesReference

java.lang.Object
org.elasticsearch.common.bytes.ReleasableBytesReference
All Implemented Interfaces:
Closeable, AutoCloseable, Comparable<BytesReference>, BytesReference, org.elasticsearch.common.xcontent.ToXContent, org.elasticsearch.common.xcontent.ToXContentFragment, org.elasticsearch.core.RefCounted, org.elasticsearch.core.Releasable
public final class ReleasableBytesReference extends Object implements org.elasticsearch.core.RefCounted, org.elasticsearch.core.Releasable, BytesReference
An extension to BytesReference that requires releasing its content. This class exists to make it explicit when a bytes reference needs to be released, and when not.

  • Field Details

    • NO_OP

      public static final org.elasticsearch.core.Releasable NO_OP

  • Constructor Details

    • ReleasableBytesReference

      public ReleasableBytesReference(BytesReference delegate, org.elasticsearch.core.Releasable releasable)

    • ReleasableBytesReference

      public ReleasableBytesReference(BytesReference delegate, org.elasticsearch.core.AbstractRefCounted refCounted)

  • Method Details

    • empty

      public static ReleasableBytesReference empty()

    • wrap

      public static ReleasableBytesReference wrap(BytesReference reference)

    • refCount

      public int refCount()

    • incRef

      public void incRef()
      Specified by:
      incRef in interface org.elasticsearch.core.RefCounted

    • tryIncRef

      public boolean tryIncRef()
      Specified by:
      tryIncRef in interface org.elasticsearch.core.RefCounted

    • decRef

      public boolean decRef()
      Specified by:
      decRef in interface org.elasticsearch.core.RefCounted

    • retain

      public ReleasableBytesReference retain()

    • retainedSlice

      public ReleasableBytesReference retainedSlice(int from, int length)

    • close

      public void close()
      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface Closeable
      Specified by:
      close in interface org.elasticsearch.core.Releasable

    • get

      public byte get(int index)
      Description copied from interface: BytesReference
      Returns the byte at the specified index. Need to be between 0 and length.
      Specified by:
      get in interface BytesReference

    • getInt

      public int getInt(int index)
      Description copied from interface: BytesReference
      Returns the integer read from the 4 bytes (BE) starting at the given index.
      Specified by:
      getInt in interface BytesReference

    • indexOf

      public int indexOf(byte marker, int from)
      Description copied from interface: BytesReference
      Finds the index of the first occurrence of the given marker between within the given bounds.
      Specified by:
      indexOf in interface BytesReference
      Parameters:
      marker - marker byte to search
      from - lower bound for the index to check (inclusive)
      Returns:
      first index of the marker or -1 if not found

    • length

      public int length()
      Description copied from interface: BytesReference
      The length.
      Specified by:
      length in interface BytesReference

    • slice

      public BytesReference slice(int from, int length)
      Description copied from interface: BytesReference
      Slice the bytes from the from index up to length.
      Specified by:
      slice in interface BytesReference

    • ramBytesUsed

      public long ramBytesUsed()
      Description copied from interface: BytesReference
      The amount of memory used by this BytesReference
      Specified by:
      ramBytesUsed in interface BytesReference

    • streamInput

      public StreamInput streamInput() throws IOException
      Description copied from interface: BytesReference
      A stream input of the bytes.
      Specified by:
      streamInput in interface BytesReference
      Throws:
      IOException

    • writeTo

      public void writeTo(OutputStream os) throws IOException
      Description copied from interface: BytesReference
      Writes the bytes directly to the output stream.
      Specified by:
      writeTo in interface BytesReference
      Throws:
      IOException

    • utf8ToString

      public String utf8ToString()
      Description copied from interface: BytesReference
      Interprets the referenced bytes as UTF8 bytes, returning the resulting string
      Specified by:
      utf8ToString in interface BytesReference

    • toBytesRef

      public org.apache.lucene.util.BytesRef toBytesRef()
      Description copied from interface: BytesReference
      Converts to Lucene BytesRef.
      Specified by:
      toBytesRef in interface BytesReference

    • iterator

      public org.apache.lucene.util.BytesRefIterator iterator()
      Description copied from interface: BytesReference
      Returns a BytesRefIterator for this BytesReference. This method allows access to the internal pages of this reference without copying them. Use with care!
      Specified by:
      iterator in interface BytesReference
      See Also:
      BytesRefIterator

    • compareTo

      public int compareTo(BytesReference o)
      Specified by:
      compareTo in interface Comparable<BytesReference>

    • toXContent

      public org.elasticsearch.common.xcontent.XContentBuilder toXContent(org.elasticsearch.common.xcontent.XContentBuilder builder, org.elasticsearch.common.xcontent.ToXContent.Params params) throws IOException
      Specified by:
      toXContent in interface org.elasticsearch.common.xcontent.ToXContent
      Throws:
      IOException

    • isFragment

      public boolean isFragment()
      Specified by:
      isFragment in interface org.elasticsearch.common.xcontent.ToXContent
      Specified by:
      isFragment in interface org.elasticsearch.common.xcontent.ToXContentFragment

    • equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • hasArray

      public boolean hasArray()
      Specified by:
      hasArray in interface BytesReference
      Returns:
      true if this instance is backed by a byte array

    • array

      public byte[] array()
      Specified by:
      array in interface BytesReference
      Returns:
      backing byte array for this instance

    • arrayOffset

      public int arrayOffset()
      Specified by:
      arrayOffset in interface BytesReference
      Returns:
      offset of the first byte of this instance in the backing byte array