Java tutorial
/** * Autogenerated by Thrift * * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING */ package org.apache.cassandra.thrift; /* * * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * */ import org.apache.commons.lang.builder.HashCodeBuilder; import java.util.List; import java.util.ArrayList; import java.util.Map; import java.util.HashMap; import java.util.EnumMap; import java.util.Set; import java.util.HashSet; import java.util.EnumSet; import java.util.Collections; import java.util.BitSet; import java.nio.ByteBuffer; import java.util.Arrays; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * A slice range is a structure that stores basic range, ordering and limit information for a query that will return * multiple columns. It could be thought of as Cassandra's version of LIMIT and ORDER BY * * @param start. The column name to start the slice with. This attribute is not required, though there is no default value, * and can be safely set to '', i.e., an empty byte array, to start with the first column name. Otherwise, it * must a valid value under the rules of the Comparator defined for the given ColumnFamily. * @param finish. The column name to stop the slice at. This attribute is not required, though there is no default value, * and can be safely set to an empty byte array to not stop until 'count' results are seen. Otherwise, it * must also be a valid value to the ColumnFamily Comparator. * @param reversed. Whether the results should be ordered in reversed order. Similar to ORDER BY blah DESC in SQL. * @param count. How many columns to return. Similar to LIMIT in SQL. May be arbitrarily large, but Thrift will * materialize the whole result into memory before returning it to the client, so be aware that you may * be better served by iterating through slices by passing the last value of one call in as the 'start' * of the next instead of increasing 'count' arbitrarily large. */ public class SliceRange implements org.apache.thrift.TBase<SliceRange, SliceRange._Fields>, java.io.Serializable, Cloneable { private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct( "SliceRange"); private static final org.apache.thrift.protocol.TField START_FIELD_DESC = new org.apache.thrift.protocol.TField( "start", org.apache.thrift.protocol.TType.STRING, (short) 1); private static final org.apache.thrift.protocol.TField FINISH_FIELD_DESC = new org.apache.thrift.protocol.TField( "finish", org.apache.thrift.protocol.TType.STRING, (short) 2); private static final org.apache.thrift.protocol.TField REVERSED_FIELD_DESC = new org.apache.thrift.protocol.TField( "reversed", org.apache.thrift.protocol.TType.BOOL, (short) 3); private static final org.apache.thrift.protocol.TField COUNT_FIELD_DESC = new org.apache.thrift.protocol.TField( "count", org.apache.thrift.protocol.TType.I32, (short) 4); public ByteBuffer start; public ByteBuffer finish; public boolean reversed; public int count; /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */ public enum _Fields implements org.apache.thrift.TFieldIdEnum { START((short) 1, "start"), FINISH((short) 2, "finish"), REVERSED((short) 3, "reversed"), COUNT((short) 4, "count"); private static final Map<String, _Fields> byName = new HashMap<String, _Fields>(); static { for (_Fields field : EnumSet.allOf(_Fields.class)) { byName.put(field.getFieldName(), field); } } /** * Find the _Fields constant that matches fieldId, or null if its not found. */ public static _Fields findByThriftId(int fieldId) { switch (fieldId) { case 1: // START return START; case 2: // FINISH return FINISH; case 3: // REVERSED return REVERSED; case 4: // COUNT return COUNT; default: return null; } } /** * Find the _Fields constant that matches fieldId, throwing an exception * if it is not found. */ public static _Fields findByThriftIdOrThrow(int fieldId) { _Fields fields = findByThriftId(fieldId); if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!"); return fields; } /** * Find the _Fields constant that matches name, or null if its not found. */ public static _Fields findByName(String name) { return byName.get(name); } private final short _thriftId; private final String _fieldName; _Fields(short thriftId, String fieldName) { _thriftId = thriftId; _fieldName = fieldName; } public short getThriftFieldId() { return _thriftId; } public String getFieldName() { return _fieldName; } } // isset id assignments private static final int __REVERSED_ISSET_ID = 0; private static final int __COUNT_ISSET_ID = 1; private BitSet __isset_bit_vector = new BitSet(2); public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap; static { Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>( _Fields.class); tmpMap.put(_Fields.START, new org.apache.thrift.meta_data.FieldMetaData("start", org.apache.thrift.TFieldRequirementType.REQUIRED, new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING, true))); tmpMap.put(_Fields.FINISH, new org.apache.thrift.meta_data.FieldMetaData("finish", org.apache.thrift.TFieldRequirementType.REQUIRED, new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING, true))); tmpMap.put(_Fields.REVERSED, new org.apache.thrift.meta_data.FieldMetaData("reversed", org.apache.thrift.TFieldRequirementType.REQUIRED, new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.BOOL))); tmpMap.put(_Fields.COUNT, new org.apache.thrift.meta_data.FieldMetaData("count", org.apache.thrift.TFieldRequirementType.REQUIRED, new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.I32))); metaDataMap = Collections.unmodifiableMap(tmpMap); org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(SliceRange.class, metaDataMap); } public SliceRange() { this.reversed = false; this.count = 100; } public SliceRange(ByteBuffer start, ByteBuffer finish, boolean reversed, int count) { this(); this.start = start; this.finish = finish; this.reversed = reversed; setReversedIsSet(true); this.count = count; setCountIsSet(true); } /** * Performs a deep copy on <i>other</i>. */ public SliceRange(SliceRange other) { __isset_bit_vector.clear(); __isset_bit_vector.or(other.__isset_bit_vector); if (other.isSetStart()) { this.start = org.apache.thrift.TBaseHelper.copyBinary(other.start); ; } if (other.isSetFinish()) { this.finish = org.apache.thrift.TBaseHelper.copyBinary(other.finish); ; } this.reversed = other.reversed; this.count = other.count; } public SliceRange deepCopy() { return new SliceRange(this); } @Override public void clear() { this.start = null; this.finish = null; this.reversed = false; this.count = 100; } public byte[] getStart() { setStart(org.apache.thrift.TBaseHelper.rightSize(start)); return start == null ? null : start.array(); } public ByteBuffer bufferForStart() { return start; } public SliceRange setStart(byte[] start) { setStart(start == null ? (ByteBuffer) null : ByteBuffer.wrap(start)); return this; } public SliceRange setStart(ByteBuffer start) { this.start = start; return this; } public void unsetStart() { this.start = null; } /** Returns true if field start is set (has been assigned a value) and false otherwise */ public boolean isSetStart() { return this.start != null; } public void setStartIsSet(boolean value) { if (!value) { this.start = null; } } public byte[] getFinish() { setFinish(org.apache.thrift.TBaseHelper.rightSize(finish)); return finish == null ? null : finish.array(); } public ByteBuffer bufferForFinish() { return finish; } public SliceRange setFinish(byte[] finish) { setFinish(finish == null ? (ByteBuffer) null : ByteBuffer.wrap(finish)); return this; } public SliceRange setFinish(ByteBuffer finish) { this.finish = finish; return this; } public void unsetFinish() { this.finish = null; } /** Returns true if field finish is set (has been assigned a value) and false otherwise */ public boolean isSetFinish() { return this.finish != null; } public void setFinishIsSet(boolean value) { if (!value) { this.finish = null; } } public boolean isReversed() { return this.reversed; } public SliceRange setReversed(boolean reversed) { this.reversed = reversed; setReversedIsSet(true); return this; } public void unsetReversed() { __isset_bit_vector.clear(__REVERSED_ISSET_ID); } /** Returns true if field reversed is set (has been assigned a value) and false otherwise */ public boolean isSetReversed() { return __isset_bit_vector.get(__REVERSED_ISSET_ID); } public void setReversedIsSet(boolean value) { __isset_bit_vector.set(__REVERSED_ISSET_ID, value); } public int getCount() { return this.count; } public SliceRange setCount(int count) { this.count = count; setCountIsSet(true); return this; } public void unsetCount() { __isset_bit_vector.clear(__COUNT_ISSET_ID); } /** Returns true if field count is set (has been assigned a value) and false otherwise */ public boolean isSetCount() { return __isset_bit_vector.get(__COUNT_ISSET_ID); } public void setCountIsSet(boolean value) { __isset_bit_vector.set(__COUNT_ISSET_ID, value); } public void setFieldValue(_Fields field, Object value) { switch (field) { case START: if (value == null) { unsetStart(); } else { setStart((ByteBuffer) value); } break; case FINISH: if (value == null) { unsetFinish(); } else { setFinish((ByteBuffer) value); } break; case REVERSED: if (value == null) { unsetReversed(); } else { setReversed((Boolean) value); } break; case COUNT: if (value == null) { unsetCount(); } else { setCount((Integer) value); } break; } } public Object getFieldValue(_Fields field) { switch (field) { case START: return getStart(); case FINISH: return getFinish(); case REVERSED: return new Boolean(isReversed()); case COUNT: return new Integer(getCount()); } throw new IllegalStateException(); } /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */ public boolean isSet(_Fields field) { if (field == null) { throw new IllegalArgumentException(); } switch (field) { case START: return isSetStart(); case FINISH: return isSetFinish(); case REVERSED: return isSetReversed(); case COUNT: return isSetCount(); } throw new IllegalStateException(); } @Override public boolean equals(Object that) { if (that == null) return false; if (that instanceof SliceRange) return this.equals((SliceRange) that); return false; } public boolean equals(SliceRange that) { if (that == null) return false; boolean this_present_start = true && this.isSetStart(); boolean that_present_start = true && that.isSetStart(); if (this_present_start || that_present_start) { if (!(this_present_start && that_present_start)) return false; if (!this.start.equals(that.start)) return false; } boolean this_present_finish = true && this.isSetFinish(); boolean that_present_finish = true && that.isSetFinish(); if (this_present_finish || that_present_finish) { if (!(this_present_finish && that_present_finish)) return false; if (!this.finish.equals(that.finish)) return false; } boolean this_present_reversed = true; boolean that_present_reversed = true; if (this_present_reversed || that_present_reversed) { if (!(this_present_reversed && that_present_reversed)) return false; if (this.reversed != that.reversed) return false; } boolean this_present_count = true; boolean that_present_count = true; if (this_present_count || that_present_count) { if (!(this_present_count && that_present_count)) return false; if (this.count != that.count) return false; } return true; } @Override public int hashCode() { HashCodeBuilder builder = new HashCodeBuilder(); boolean present_start = true && (isSetStart()); builder.append(present_start); if (present_start) builder.append(start); boolean present_finish = true && (isSetFinish()); builder.append(present_finish); if (present_finish) builder.append(finish); boolean present_reversed = true; builder.append(present_reversed); if (present_reversed) builder.append(reversed); boolean present_count = true; builder.append(present_count); if (present_count) builder.append(count); return builder.toHashCode(); } public int compareTo(SliceRange other) { if (!getClass().equals(other.getClass())) { return getClass().getName().compareTo(other.getClass().getName()); } int lastComparison = 0; SliceRange typedOther = (SliceRange) other; lastComparison = Boolean.valueOf(isSetStart()).compareTo(typedOther.isSetStart()); if (lastComparison != 0) { return lastComparison; } if (isSetStart()) { lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.start, typedOther.start); if (lastComparison != 0) { return lastComparison; } } lastComparison = Boolean.valueOf(isSetFinish()).compareTo(typedOther.isSetFinish()); if (lastComparison != 0) { return lastComparison; } if (isSetFinish()) { lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.finish, typedOther.finish); if (lastComparison != 0) { return lastComparison; } } lastComparison = Boolean.valueOf(isSetReversed()).compareTo(typedOther.isSetReversed()); if (lastComparison != 0) { return lastComparison; } if (isSetReversed()) { lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.reversed, typedOther.reversed); if (lastComparison != 0) { return lastComparison; } } lastComparison = Boolean.valueOf(isSetCount()).compareTo(typedOther.isSetCount()); if (lastComparison != 0) { return lastComparison; } if (isSetCount()) { lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.count, typedOther.count); if (lastComparison != 0) { return lastComparison; } } return 0; } public _Fields fieldForId(int fieldId) { return _Fields.findByThriftId(fieldId); } public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException { org.apache.thrift.protocol.TField field; iprot.readStructBegin(); while (true) { field = iprot.readFieldBegin(); if (field.type == org.apache.thrift.protocol.TType.STOP) { break; } switch (field.id) { case 1: // START if (field.type == org.apache.thrift.protocol.TType.STRING) { this.start = iprot.readBinary(); } else { org.apache.thrift.protocol.TProtocolUtil.skip(iprot, field.type); } break; case 2: // FINISH if (field.type == org.apache.thrift.protocol.TType.STRING) { this.finish = iprot.readBinary(); } else { org.apache.thrift.protocol.TProtocolUtil.skip(iprot, field.type); } break; case 3: // REVERSED if (field.type == org.apache.thrift.protocol.TType.BOOL) { this.reversed = iprot.readBool(); setReversedIsSet(true); } else { org.apache.thrift.protocol.TProtocolUtil.skip(iprot, field.type); } break; case 4: // COUNT if (field.type == org.apache.thrift.protocol.TType.I32) { this.count = iprot.readI32(); setCountIsSet(true); } else { org.apache.thrift.protocol.TProtocolUtil.skip(iprot, field.type); } break; default: org.apache.thrift.protocol.TProtocolUtil.skip(iprot, field.type); } iprot.readFieldEnd(); } iprot.readStructEnd(); // check for required fields of primitive type, which can't be checked in the validate method if (!isSetReversed()) { throw new org.apache.thrift.protocol.TProtocolException( "Required field 'reversed' was not found in serialized data! Struct: " + toString()); } if (!isSetCount()) { throw new org.apache.thrift.protocol.TProtocolException( "Required field 'count' was not found in serialized data! Struct: " + toString()); } validate(); } public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException { validate(); oprot.writeStructBegin(STRUCT_DESC); if (this.start != null) { oprot.writeFieldBegin(START_FIELD_DESC); oprot.writeBinary(this.start); oprot.writeFieldEnd(); } if (this.finish != null) { oprot.writeFieldBegin(FINISH_FIELD_DESC); oprot.writeBinary(this.finish); oprot.writeFieldEnd(); } oprot.writeFieldBegin(REVERSED_FIELD_DESC); oprot.writeBool(this.reversed); oprot.writeFieldEnd(); oprot.writeFieldBegin(COUNT_FIELD_DESC); oprot.writeI32(this.count); oprot.writeFieldEnd(); oprot.writeFieldStop(); oprot.writeStructEnd(); } @Override public String toString() { StringBuilder sb = new StringBuilder("SliceRange("); boolean first = true; sb.append("start:"); if (this.start == null) { sb.append("null"); } else { org.apache.thrift.TBaseHelper.toString(this.start, sb); } first = false; if (!first) sb.append(", "); sb.append("finish:"); if (this.finish == null) { sb.append("null"); } else { org.apache.thrift.TBaseHelper.toString(this.finish, sb); } first = false; if (!first) sb.append(", "); sb.append("reversed:"); sb.append(this.reversed); first = false; if (!first) sb.append(", "); sb.append("count:"); sb.append(this.count); first = false; sb.append(")"); return sb.toString(); } public void validate() throws org.apache.thrift.TException { // check for required fields if (start == null) { throw new org.apache.thrift.protocol.TProtocolException( "Required field 'start' was not present! Struct: " + toString()); } if (finish == null) { throw new org.apache.thrift.protocol.TProtocolException( "Required field 'finish' was not present! Struct: " + toString()); } // alas, we cannot check 'reversed' because it's a primitive and you chose the non-beans generator. // alas, we cannot check 'count' because it's a primitive and you chose the non-beans generator. } }