Examples of org.apache.hadoop.hbase.io.TextSequence

org.apache.hadoop.hbase.io.TextSequence
As CharSequence is to String, so is TextSequence to {@link Text}(except a TextSequence is a Text whereas a String is a CharSequence). Use when you want to conserve on object creation.
Use with care. If danger that the passed in {@link Text} instance canchange during the life of this TextSequence, concretize this TextSequence by calling {@link #toText()}.
Equals considers a Text equal if the TextSequence brackets the same bytes.
TextSequence will not always work as a Text. For instance, the following fails Text c = new Text(new TextSequence(new Text("some string"))); because the Text constructor accesses private Text data members making the new instance from the passed 'Text'.
TODO: Should this be an Interface as CharSequence is?

      // a memcache flush.  We don't.
      int entries = 0;
      try {
        for (Map.Entry<HStoreKey, byte []> es: cache.entrySet()) {
          HStoreKey curkey = es.getKey();
          TextSequence f = HStoreKey.extractFamily(curkey.getColumn());
          if (f.equals(this.family.getFamilyName())) {
            entries++;
            out.append(curkey, new ImmutableBytesWritable(es.getValue()));
          }
        }
      } finally {

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      // a memcache flush. We don't.
      int entries = 0;
      try {
        for (Map.Entry<HStoreKey, byte []> es: cache.entrySet()) {
          HStoreKey curkey = es.getKey();
          TextSequence f = HStoreKey.extractFamily(curkey.getColumn());
          if (f.equals(this.family.getFamilyName())) {
            entries++;
            out.append(curkey, new ImmutableBytesWritable(es.getValue()));
            flushed += HRegion.getEntrySize(curkey, es.getValue());
          }
        }

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  /** @return name of column family without trailing ':' */
  public synchronized Text getFamilyName() {
    if (name != null) {
      if (familyName == null) {
        familyName = new TextSequence(name, 0, name.getLength() - 1).toText();
      }
      return familyName;
    }
    return null;
  }

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      // a memcache flush.  We don't.
      int entries = 0;
      try {
        for (Map.Entry<HStoreKey, byte []> es: cache.entrySet()) {
          HStoreKey curkey = es.getKey();
          TextSequence f = HStoreKey.extractFamily(curkey.getColumn());
          if (f.equals(this.family.getFamilyName())) {
            entries++;
            out.append(curkey, new ImmutableBytesWritable(es.getValue()));
          }
        }
      } finally {

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  /** @return name of column family without trailing ':' */
  public synchronized Text getFamilyName() {
    if (name != null) {
      if (familyName == null) {
        familyName = new TextSequence(name, 0, name.getLength() - 1).toText();
      }
      return familyName;
    }
    return null;
  }

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      // a memcache flush.  We don't.
      int entries = 0;
      try {
        for (Map.Entry<HStoreKey, byte []> es: cache.entrySet()) {
          HStoreKey curkey = es.getKey();
          TextSequence f = HStoreKey.extractFamily(curkey.getColumn());
          if (f.equals(this.family.getFamilyName())) {
            entries++;
            out.append(curkey, new ImmutableBytesWritable(es.getValue()));
          }
        }
      } finally {

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  throws InvalidColumnNameException {
    int offset = getColonOffset(col);
    // Include ':' in copy?
    offset += (withColon)? 1: 0;
    if (offset == col.getLength()) {
      return new TextSequence(col);
    }
    return new TextSequence(col, 0, offset);
  }

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  throws InvalidColumnNameException {
    int offset = getColonOffset(col);
    if (offset + 1 == col.getLength()) {
      return null;
    }
    return new TextSequence(col, offset + 1);
  }

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      // a memcache flush. We don't.
      int entries = 0;
      try {
        for (Map.Entry<HStoreKey, byte []> es: cache.entrySet()) {
          HStoreKey curkey = es.getKey();
          TextSequence f = HStoreKey.extractFamily(curkey.getColumn());
          if (f.equals(this.family.getFamilyName())) {
            entries++;
            out.append(curkey, new ImmutableBytesWritable(es.getValue()));
            flushed += HRegion.getEntrySize(curkey, es.getValue());
          }
        }

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Related Classes of org.apache.hadoop.hbase.io.TextSequence

org.apache.hadoop.hbase.HColumnDescriptor

org.apache.hadoop.hbase.HStore

org.apache.hadoop.hbase.HStoreKey

org.apache.hadoop.io.Text

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