类org.apache.hadoop.mapred.lib.KeyFieldBasedComparator源码实例Demo

下面列出了怎么用org.apache.hadoop.mapred.lib.KeyFieldBasedComparator的API类实例代码及写法,或者点击链接到github查看源代码。

源代码1 项目: hadoop   文件: JobConf.java
/**
 * Get the {@link KeyFieldBasedComparator} options
 */
public String getKeyFieldComparatorOption() {
  return get(KeyFieldBasedComparator.COMPARATOR_OPTIONS);
}
 
源代码2 项目: big-c   文件: JobConf.java
/**
 * Get the {@link KeyFieldBasedComparator} options
 */
public String getKeyFieldComparatorOption() {
  return get(KeyFieldBasedComparator.COMPARATOR_OPTIONS);
}
 
源代码3 项目: hadoop   文件: JobConf.java
/**
 * Set the {@link KeyFieldBasedComparator} options used to compare keys.
 * 
 * @param keySpec the key specification of the form -k pos1[,pos2], where,
 *  pos is of the form f[.c][opts], where f is the number
 *  of the key field to use, and c is the number of the first character from
 *  the beginning of the field. Fields and character posns are numbered 
 *  starting with 1; a character position of zero in pos2 indicates the
 *  field's last character. If '.c' is omitted from pos1, it defaults to 1
 *  (the beginning of the field); if omitted from pos2, it defaults to 0 
 *  (the end of the field). opts are ordering options. The supported options
 *  are:
 *    -n, (Sort numerically)
 *    -r, (Reverse the result of comparison)                 
 */
public void setKeyFieldComparatorOptions(String keySpec) {
  setOutputKeyComparatorClass(KeyFieldBasedComparator.class);
  set(KeyFieldBasedComparator.COMPARATOR_OPTIONS, keySpec);
}
 
源代码4 项目: big-c   文件: JobConf.java
/**
 * Set the {@link KeyFieldBasedComparator} options used to compare keys.
 * 
 * @param keySpec the key specification of the form -k pos1[,pos2], where,
 *  pos is of the form f[.c][opts], where f is the number
 *  of the key field to use, and c is the number of the first character from
 *  the beginning of the field. Fields and character posns are numbered 
 *  starting with 1; a character position of zero in pos2 indicates the
 *  field's last character. If '.c' is omitted from pos1, it defaults to 1
 *  (the beginning of the field); if omitted from pos2, it defaults to 0 
 *  (the end of the field). opts are ordering options. The supported options
 *  are:
 *    -n, (Sort numerically)
 *    -r, (Reverse the result of comparison)                 
 */
public void setKeyFieldComparatorOptions(String keySpec) {
  setOutputKeyComparatorClass(KeyFieldBasedComparator.class);
  set(KeyFieldBasedComparator.COMPARATOR_OPTIONS, keySpec);
}
 
源代码5 项目: RDFS   文件: JobConf.java
/**
 * Set the {@link KeyFieldBasedComparator} options used to compare keys.
 *
 * @param keySpec the key specification of the form -k pos1[,pos2], where,
 *  pos is of the form f[.c][opts], where f is the number
 *  of the key field to use, and c is the number of the first character from
 *  the beginning of the field. Fields and character posns are numbered
 *  starting with 1; a character position of zero in pos2 indicates the
 *  field's last character. If '.c' is omitted from pos1, it defaults to 1
 *  (the beginning of the field); if omitted from pos2, it defaults to 0
 *  (the end of the field). opts are ordering options. The supported options
 *  are:
 *    -n, (Sort numerically)
 *    -r, (Reverse the result of comparison)
 */
public void setKeyFieldComparatorOptions(String keySpec) {
  setOutputKeyComparatorClass(KeyFieldBasedComparator.class);
  set("mapred.text.key.comparator.options", keySpec);
}
 
源代码6 项目: hadoop-gpu   文件: JobConf.java
/**
 * Set the {@link KeyFieldBasedComparator} options used to compare keys.
 * 
 * @param keySpec the key specification of the form -k pos1[,pos2], where,
 *  pos is of the form f[.c][opts], where f is the number
 *  of the key field to use, and c is the number of the first character from
 *  the beginning of the field. Fields and character posns are numbered 
 *  starting with 1; a character position of zero in pos2 indicates the
 *  field's last character. If '.c' is omitted from pos1, it defaults to 1
 *  (the beginning of the field); if omitted from pos2, it defaults to 0 
 *  (the end of the field). opts are ordering options. The supported options
 *  are:
 *    -n, (Sort numerically)
 *    -r, (Reverse the result of comparison)                 
 */
public void setKeyFieldComparatorOptions(String keySpec) {
  setOutputKeyComparatorClass(KeyFieldBasedComparator.class);
  set("mapred.text.key.comparator.options", keySpec);
}
 
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