Java tutorial
/* * Copyright 2014-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with * the License. A copy of the License is located at * * http://aws.amazon.com/apache2.0 * * or in the "license" file accompanying this file. This file 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. */ package com.amazonaws.services.simpledb.model; import java.io.Serializable; import javax.annotation.Generated; /** * <p> * Specifies the conditions under which data should be updated. If an update condition is specified for a request, the * data will only be updated if the condition is satisfied. For example, if an attribute with a specific name and value * exists, or if a specific attribute doesn't exist. * </p> */ @Generated("com.amazonaws:aws-java-sdk-code-generator") public class UpdateCondition implements Serializable, Cloneable { /** * <p> * The name of the attribute involved in the condition. * </p> */ private String name; /** * <p> * The value of an attribute. This value can only be specified when the <code>Exists</code> parameter is equal to * <code>true</code>. * </p> */ private String value; /** * <p> * A value specifying whether or not the specified attribute must exist with the specified value in order for the * update condition to be satisfied. Specify <code>true</code> if the attribute must exist for the update condition * to be satisfied. Specify <code>false</code> if the attribute should not exist in order for the update condition * to be satisfied. * </p> */ private Boolean exists; /** * Default constructor for UpdateCondition object. Callers should use the setter or fluent setter (with...) methods * to initialize the object after creating it. */ public UpdateCondition() { } /** * Constructs a new UpdateCondition object. Callers should use the setter or fluent setter (with...) methods to * initialize any additional object members. * * @param name * The name of the attribute involved in the condition. * @param value * The value of an attribute. This value can only be specified when the <code>Exists</code> parameter is * equal to <code>true</code>. * @param exists * A value specifying whether or not the specified attribute must exist with the specified value in order for * the update condition to be satisfied. Specify <code>true</code> if the attribute must exist for the update * condition to be satisfied. Specify <code>false</code> if the attribute should not exist in order for the * update condition to be satisfied. */ public UpdateCondition(String name, String value, Boolean exists) { setName(name); setValue(value); setExists(exists); } /** * <p> * The name of the attribute involved in the condition. * </p> * * @param name * The name of the attribute involved in the condition. */ public void setName(String name) { this.name = name; } /** * <p> * The name of the attribute involved in the condition. * </p> * * @return The name of the attribute involved in the condition. */ public String getName() { return this.name; } /** * <p> * The name of the attribute involved in the condition. * </p> * * @param name * The name of the attribute involved in the condition. * @return Returns a reference to this object so that method calls can be chained together. */ public UpdateCondition withName(String name) { setName(name); return this; } /** * <p> * The value of an attribute. This value can only be specified when the <code>Exists</code> parameter is equal to * <code>true</code>. * </p> * * @param value * The value of an attribute. This value can only be specified when the <code>Exists</code> parameter is * equal to <code>true</code>. */ public void setValue(String value) { this.value = value; } /** * <p> * The value of an attribute. This value can only be specified when the <code>Exists</code> parameter is equal to * <code>true</code>. * </p> * * @return The value of an attribute. This value can only be specified when the <code>Exists</code> parameter is * equal to <code>true</code>. */ public String getValue() { return this.value; } /** * <p> * The value of an attribute. This value can only be specified when the <code>Exists</code> parameter is equal to * <code>true</code>. * </p> * * @param value * The value of an attribute. This value can only be specified when the <code>Exists</code> parameter is * equal to <code>true</code>. * @return Returns a reference to this object so that method calls can be chained together. */ public UpdateCondition withValue(String value) { setValue(value); return this; } /** * <p> * A value specifying whether or not the specified attribute must exist with the specified value in order for the * update condition to be satisfied. Specify <code>true</code> if the attribute must exist for the update condition * to be satisfied. Specify <code>false</code> if the attribute should not exist in order for the update condition * to be satisfied. * </p> * * @param exists * A value specifying whether or not the specified attribute must exist with the specified value in order for * the update condition to be satisfied. Specify <code>true</code> if the attribute must exist for the update * condition to be satisfied. Specify <code>false</code> if the attribute should not exist in order for the * update condition to be satisfied. */ public void setExists(Boolean exists) { this.exists = exists; } /** * <p> * A value specifying whether or not the specified attribute must exist with the specified value in order for the * update condition to be satisfied. Specify <code>true</code> if the attribute must exist for the update condition * to be satisfied. Specify <code>false</code> if the attribute should not exist in order for the update condition * to be satisfied. * </p> * * @return A value specifying whether or not the specified attribute must exist with the specified value in order * for the update condition to be satisfied. Specify <code>true</code> if the attribute must exist for the * update condition to be satisfied. Specify <code>false</code> if the attribute should not exist in order * for the update condition to be satisfied. */ public Boolean getExists() { return this.exists; } /** * <p> * A value specifying whether or not the specified attribute must exist with the specified value in order for the * update condition to be satisfied. Specify <code>true</code> if the attribute must exist for the update condition * to be satisfied. Specify <code>false</code> if the attribute should not exist in order for the update condition * to be satisfied. * </p> * * @param exists * A value specifying whether or not the specified attribute must exist with the specified value in order for * the update condition to be satisfied. Specify <code>true</code> if the attribute must exist for the update * condition to be satisfied. Specify <code>false</code> if the attribute should not exist in order for the * update condition to be satisfied. * @return Returns a reference to this object so that method calls can be chained together. */ public UpdateCondition withExists(Boolean exists) { setExists(exists); return this; } /** * <p> * A value specifying whether or not the specified attribute must exist with the specified value in order for the * update condition to be satisfied. Specify <code>true</code> if the attribute must exist for the update condition * to be satisfied. Specify <code>false</code> if the attribute should not exist in order for the update condition * to be satisfied. * </p> * * @return A value specifying whether or not the specified attribute must exist with the specified value in order * for the update condition to be satisfied. Specify <code>true</code> if the attribute must exist for the * update condition to be satisfied. Specify <code>false</code> if the attribute should not exist in order * for the update condition to be satisfied. */ public Boolean isExists() { return this.exists; } /** * Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be * redacted from this string using a placeholder value. * * @return A string representation of this object. * * @see java.lang.Object#toString() */ @Override public String toString() { StringBuilder sb = new StringBuilder(); sb.append("{"); if (getName() != null) sb.append("Name: ").append(getName()).append(","); if (getValue() != null) sb.append("Value: ").append(getValue()).append(","); if (getExists() != null) sb.append("Exists: ").append(getExists()); sb.append("}"); return sb.toString(); } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (obj instanceof UpdateCondition == false) return false; UpdateCondition other = (UpdateCondition) obj; if (other.getName() == null ^ this.getName() == null) return false; if (other.getName() != null && other.getName().equals(this.getName()) == false) return false; if (other.getValue() == null ^ this.getValue() == null) return false; if (other.getValue() != null && other.getValue().equals(this.getValue()) == false) return false; if (other.getExists() == null ^ this.getExists() == null) return false; if (other.getExists() != null && other.getExists().equals(this.getExists()) == false) return false; return true; } @Override public int hashCode() { final int prime = 31; int hashCode = 1; hashCode = prime * hashCode + ((getName() == null) ? 0 : getName().hashCode()); hashCode = prime * hashCode + ((getValue() == null) ? 0 : getValue().hashCode()); hashCode = prime * hashCode + ((getExists() == null) ? 0 : getExists().hashCode()); return hashCode; } @Override public UpdateCondition clone() { try { return (UpdateCondition) super.clone(); } catch (CloneNotSupportedException e) { throw new IllegalStateException( "Got a CloneNotSupportedException from Object.clone() " + "even though we're Cloneable!", e); } } }