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 SlicePredicate is similar to a mathematic predicate (see http://en.wikipedia.org/wiki/Predicate_(mathematical_logic)), * which is described as "a property that the elements of a set have in common." * * SlicePredicate's in Cassandra are described with either a list of column_names or a SliceRange. If column_names is * specified, slice_range is ignored. * * @param column_name. A list of column names to retrieve. This can be used similar to Memcached's "multi-get" feature * to fetch N known column names. For instance, if you know you wish to fetch columns 'Joe', 'Jack', * and 'Jim' you can pass those column names as a list to fetch all three at once. * @param slice_range. A SliceRange describing how to range, order, and/or limit the slice. */ public class SlicePredicate implements org.apache.thrift.TBase<SlicePredicate, SlicePredicate._Fields>, java.io.Serializable, Cloneable { private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct( "SlicePredicate"); private static final org.apache.thrift.protocol.TField COLUMN_NAMES_FIELD_DESC = new org.apache.thrift.protocol.TField( "column_names", org.apache.thrift.protocol.TType.LIST, (short) 1); private static final org.apache.thrift.protocol.TField SLICE_RANGE_FIELD_DESC = new org.apache.thrift.protocol.TField( "slice_range", org.apache.thrift.protocol.TType.STRUCT, (short) 2); public List<ByteBuffer> column_names; public SliceRange slice_range; /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */ public enum _Fields implements org.apache.thrift.TFieldIdEnum { COLUMN_NAMES((short) 1, "column_names"), SLICE_RANGE((short) 2, "slice_range"); 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: // COLUMN_NAMES return COLUMN_NAMES; case 2: // SLICE_RANGE return SLICE_RANGE; 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 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.COLUMN_NAMES, new org.apache.thrift.meta_data.FieldMetaData("column_names", org.apache.thrift.TFieldRequirementType.OPTIONAL, new org.apache.thrift.meta_data.ListMetaData(org.apache.thrift.protocol.TType.LIST, new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING, true)))); tmpMap.put(_Fields.SLICE_RANGE, new org.apache.thrift.meta_data.FieldMetaData("slice_range", org.apache.thrift.TFieldRequirementType.OPTIONAL, new org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT, SliceRange.class))); metaDataMap = Collections.unmodifiableMap(tmpMap); org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(SlicePredicate.class, metaDataMap); } public SlicePredicate() { } /** * Performs a deep copy on <i>other</i>. */ public SlicePredicate(SlicePredicate other) { if (other.isSetColumn_names()) { List<ByteBuffer> __this__column_names = new ArrayList<ByteBuffer>(); for (ByteBuffer other_element : other.column_names) { ByteBuffer temp_binary_element = org.apache.thrift.TBaseHelper.copyBinary(other_element); ; __this__column_names.add(temp_binary_element); } this.column_names = __this__column_names; } if (other.isSetSlice_range()) { this.slice_range = new SliceRange(other.slice_range); } } public SlicePredicate deepCopy() { return new SlicePredicate(this); } @Override public void clear() { this.column_names = null; this.slice_range = null; } public int getColumn_namesSize() { return (this.column_names == null) ? 0 : this.column_names.size(); } public java.util.Iterator<ByteBuffer> getColumn_namesIterator() { return (this.column_names == null) ? null : this.column_names.iterator(); } public void addToColumn_names(ByteBuffer elem) { if (this.column_names == null) { this.column_names = new ArrayList<ByteBuffer>(); } this.column_names.add(elem); } public List<ByteBuffer> getColumn_names() { return this.column_names; } public SlicePredicate setColumn_names(List<ByteBuffer> column_names) { this.column_names = column_names; return this; } public void unsetColumn_names() { this.column_names = null; } /** Returns true if field column_names is set (has been assigned a value) and false otherwise */ public boolean isSetColumn_names() { return this.column_names != null; } public void setColumn_namesIsSet(boolean value) { if (!value) { this.column_names = null; } } public SliceRange getSlice_range() { return this.slice_range; } public SlicePredicate setSlice_range(SliceRange slice_range) { this.slice_range = slice_range; return this; } public void unsetSlice_range() { this.slice_range = null; } /** Returns true if field slice_range is set (has been assigned a value) and false otherwise */ public boolean isSetSlice_range() { return this.slice_range != null; } public void setSlice_rangeIsSet(boolean value) { if (!value) { this.slice_range = null; } } public void setFieldValue(_Fields field, Object value) { switch (field) { case COLUMN_NAMES: if (value == null) { unsetColumn_names(); } else { setColumn_names((List<ByteBuffer>) value); } break; case SLICE_RANGE: if (value == null) { unsetSlice_range(); } else { setSlice_range((SliceRange) value); } break; } } public Object getFieldValue(_Fields field) { switch (field) { case COLUMN_NAMES: return getColumn_names(); case SLICE_RANGE: return getSlice_range(); } 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 COLUMN_NAMES: return isSetColumn_names(); case SLICE_RANGE: return isSetSlice_range(); } throw new IllegalStateException(); } @Override public boolean equals(Object that) { if (that == null) return false; if (that instanceof SlicePredicate) return this.equals((SlicePredicate) that); return false; } public boolean equals(SlicePredicate that) { if (that == null) return false; boolean this_present_column_names = true && this.isSetColumn_names(); boolean that_present_column_names = true && that.isSetColumn_names(); if (this_present_column_names || that_present_column_names) { if (!(this_present_column_names && that_present_column_names)) return false; if (!this.column_names.equals(that.column_names)) return false; } boolean this_present_slice_range = true && this.isSetSlice_range(); boolean that_present_slice_range = true && that.isSetSlice_range(); if (this_present_slice_range || that_present_slice_range) { if (!(this_present_slice_range && that_present_slice_range)) return false; if (!this.slice_range.equals(that.slice_range)) return false; } return true; } @Override public int hashCode() { HashCodeBuilder builder = new HashCodeBuilder(); boolean present_column_names = true && (isSetColumn_names()); builder.append(present_column_names); if (present_column_names) builder.append(column_names); boolean present_slice_range = true && (isSetSlice_range()); builder.append(present_slice_range); if (present_slice_range) builder.append(slice_range); return builder.toHashCode(); } public int compareTo(SlicePredicate other) { if (!getClass().equals(other.getClass())) { return getClass().getName().compareTo(other.getClass().getName()); } int lastComparison = 0; SlicePredicate typedOther = (SlicePredicate) other; lastComparison = Boolean.valueOf(isSetColumn_names()).compareTo(typedOther.isSetColumn_names()); if (lastComparison != 0) { return lastComparison; } if (isSetColumn_names()) { lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.column_names, typedOther.column_names); if (lastComparison != 0) { return lastComparison; } } lastComparison = Boolean.valueOf(isSetSlice_range()).compareTo(typedOther.isSetSlice_range()); if (lastComparison != 0) { return lastComparison; } if (isSetSlice_range()) { lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.slice_range, typedOther.slice_range); 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: // COLUMN_NAMES if (field.type == org.apache.thrift.protocol.TType.LIST) { { org.apache.thrift.protocol.TList _list8 = iprot.readListBegin(); this.column_names = new ArrayList<ByteBuffer>(_list8.size); for (int _i9 = 0; _i9 < _list8.size; ++_i9) { ByteBuffer _elem10; _elem10 = iprot.readBinary(); this.column_names.add(_elem10); } iprot.readListEnd(); } } else { org.apache.thrift.protocol.TProtocolUtil.skip(iprot, field.type); } break; case 2: // SLICE_RANGE if (field.type == org.apache.thrift.protocol.TType.STRUCT) { this.slice_range = new SliceRange(); this.slice_range.read(iprot); } 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 validate(); } public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException { validate(); oprot.writeStructBegin(STRUCT_DESC); if (this.column_names != null) { if (isSetColumn_names()) { oprot.writeFieldBegin(COLUMN_NAMES_FIELD_DESC); { oprot.writeListBegin(new org.apache.thrift.protocol.TList( org.apache.thrift.protocol.TType.STRING, this.column_names.size())); for (ByteBuffer _iter11 : this.column_names) { oprot.writeBinary(_iter11); } oprot.writeListEnd(); } oprot.writeFieldEnd(); } } if (this.slice_range != null) { if (isSetSlice_range()) { oprot.writeFieldBegin(SLICE_RANGE_FIELD_DESC); this.slice_range.write(oprot); oprot.writeFieldEnd(); } } oprot.writeFieldStop(); oprot.writeStructEnd(); } @Override public String toString() { StringBuilder sb = new StringBuilder("SlicePredicate("); boolean first = true; if (isSetColumn_names()) { sb.append("column_names:"); if (this.column_names == null) { sb.append("null"); } else { sb.append(this.column_names); } first = false; } if (isSetSlice_range()) { if (!first) sb.append(", "); sb.append("slice_range:"); if (this.slice_range == null) { sb.append("null"); } else { sb.append(this.slice_range); } first = false; } sb.append(")"); return sb.toString(); } public void validate() throws org.apache.thrift.TException { // check for required fields } }