Examples of java.lang.StringBuilder

java.lang.StringBuilder
A mutable sequence of characters. This class provides an API compatible with StringBuffer, but with no guarantee of synchronization. This class is designed for use as a drop-in replacement for StringBuffer in places where the string buffer was being used by a single thread (as is generally the case). Where possible, it is recommended that this class be used in preference to StringBuffer as it will be faster under most implementations.
The principal operations on a StringBuilder are the append and insert methods, which are overloaded so as to accept data of any type. Each effectively converts a given datum to a string and then appends or inserts the characters of that string to the string builder. The append method always adds these characters at the end of the builder; the insert method adds the characters at a specified point.
For example, if z refers to a string builder object whose current contents are "start", then the method call z.append("le") would cause the string builder to contain "startle", whereas z.insert(4, "le") would alter the string builder to contain "starlet".
In general, if sb refers to an instance of a StringBuilder, then sb.append(x) has the same effect as sb.insert(sb.length(), x). Every string builder has a capacity. As long as the length of the character sequence contained in the string builder does not exceed the capacity, it is not necessary to allocate a new internal buffer. If the internal buffer overflows, it is automatically made larger.
Instances of StringBuilder are not safe for use by multiple threads. If such synchronization is required then it is recommended that {@link java.lang.StringBuffer} be used. @author Michael McCloskey @version 1.11, 11/17/05 @see java.lang.StringBuffer @see java.lang.String @since 1.5

  }


  @Override
  public String getStatusString() 
  {
    StringBuilder strbuffer = new StringBuilder();
    //list down all jobs and trigger
    try {
      String[] jobGroups;
      String[] jobsInGroup;
      int i;
      int j;


      jobGroups = scheduler_.getJobGroupNames();
      for (i = 0; i < jobGroups.length; i++) {
        strbuffer.append("Group: " + jobGroups[i] + " contains the following jobs\n");
        jobsInGroup = scheduler_.getJobNames(jobGroups[i]);
  
        for (j = 0; j < jobsInGroup.length; j++) {
          strbuffer.append("- " + jobsInGroup[j] + "\n");
          logger.info("- " + jobsInGroup[j]);
        }
      }
      
      String[] triggerGroups;
      String[] triggersInGroup;
      
      triggerGroups = scheduler_.getTriggerGroupNames();
      for (i = 0; i < triggerGroups.length; i++) {
        strbuffer.append("Group: " + triggerGroups[i] + " contains the following triggers\n");
        triggersInGroup = scheduler_.getTriggerNames(triggerGroups[i]);
      
        for (j = 0; j < triggersInGroup.length; j++) {
          strbuffer.append("- " + triggersInGroup[j] + "\n");
        }
      }
    } catch (Exception ex) {
      //Ignore
      strbuffer.append(ex.toString());
    }
    
    return strbuffer.toString();
  }

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     * @param delim Delimiter to use in the string.
     * @return A string containing the tuple.
     * @throws ExecException if a non-atomic value is found.
     */
    public String toDelimitedString(String delim) throws ExecException {
        StringBuilder buf = new StringBuilder();
        for (Iterator<Object> it = mFields.iterator(); it.hasNext();) {
            Object field = it.next();
            buf.append(field == null ? "" : field.toString());
            if (it.hasNext())
                buf.append(delim);
        }
        return buf.toString();
    }

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    public abstract String name();


    @Override
    public String toString() {
        StringBuilder msg = new StringBuilder();


        msg.append("(Name: " + name() + " Operator Key: " + mKey + ")");


        return msg.toString();
    }

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    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("needAllFields: " + mNeedAllFields);
        sb.append(" needNoFields: " + mNeedNoFields);
        sb.append(" fields: " + mFields);
        return sb.toString();
    }

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    List<Object> getSelectedRowKeys() {
        return selectedRowKeys;
    }


    String getSelectedRowKeysAsString() {
        StringBuilder builder = new StringBuilder();
        for(Iterator<Object> iter = getSelectedRowKeys().iterator(); iter.hasNext();) {
            builder.append(iter.next());


            if(iter.hasNext()) {
                builder.append(",");
            }
        }


        return builder.toString();
    }

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    public List<String> getSelectedRowKeys() {
        return this.selectedRowKeys;
    }


    public String getSelectedRowKeysAsString() {
        StringBuilder builder = new StringBuilder();


        for(Iterator<String> iter = this.selectedRowKeys.iterator();iter.hasNext();) {
            builder.append(iter.next());


            if(iter.hasNext()) {
                builder.append(',');
            }
        }


        return builder.toString();
    }

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    public List<String> getSelectedRowKeys() {
        return this.selectedRowKeys;
    }


    public String getSelectedRowKeysAsString() {
        StringBuilder builder = new StringBuilder();


        for(Iterator<String> iter = this.selectedRowKeys.iterator();iter.hasNext();) {
            builder.append(iter.next());


            if(iter.hasNext()) {
                builder.append(',');
            }
        }


        return builder.toString();
    }

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        this.totalSplits = totalSplits;
    }


    @Override
    public String toString() {
        StringBuilder st = new StringBuilder();
        st.append("Number of splits :" + wrappedSplits.length+"\n");
        try {
            st.append("Total Length = "+ getLength()+"\n");
            for (int i = 0; i < wrappedSplits.length; i++) {
                st.append("Input split["+i+"]:\n   Length = "+ wrappedSplits[i].getLength()+"\n   ClassName: " +
                    wrappedSplits[i].getClass().getName() + "\n   Locations:\n");
                for (String location :  wrappedSplits[i].getLocations())
                    st.append("    "+location+"\n");
                st.append("\n-----------------------\n"); 
          }
        } catch (IOException e) {
          return null;
        } catch (InterruptedException e) {
          return null;
        }
        return st.toString();
    }

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    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("needAllFields: " + mNeedAllFields);
        sb.append(" needNoFields: " + mNeedNoFields);
        sb.append(" fields: " + mFields);
        return sb.toString();
    }

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        mChanges = changes;
    }
    
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("changes: " + mChanges);
        sb.append(" mapped fields: " + mMappedFields);
        sb.append(" added fields: " + mAddedFields);
        sb.append(" removed fields: " + mRemovedFields);
        return sb.toString();
    }

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